Answers
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Related Questions
The __________________defines the boundary of the cell and determines the nature of its contact with the environment.
Answers
The plasma membrane defines the boundary of the cell and determines the nature of contact with the environment.
The plasma membrane is the outermost layer of an animal cell. It is composed of peptidoglycan and has a lipid bilayer with proteins embedded in it.
The plasma membrane is also known as cell membrane and is a selectively permeable membrane. It allows certain molecules and solutes to enter into the cell and go outside of the cell whenever necessary.
Plasma membrane plays a vital role in the communication between two consecutive cells as it is selectively permeable. The plasma membrane also maintains the concentration of the cell, by releasing or allowing certain solutes to enter and go out of the cell.
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Describe the role of GA in a-amylase production and in germination. Provide evidence for your claim
Answers
Gibberellic acid (GA) plays a crucial role in a-amylase production and germination. GA stimulates the synthesis and release of a-amylase enzymes, which hydrolyze starch into sugars during germination. Experimental studies have demonstrated that the application of GA accelerates a-amylase production and enhances germination in various plant species
In terms of a-amylase production, GA stimulates the synthesis and release of this enzyme. a-amylase is responsible for breaking down starch into simpler sugars, which are then utilized by the plant for growth and development.
Studies have shown that applying GA to plant tissues or seeds results in an increased production of a-amylase, facilitating the conversion of stored starch into energy-rich sugars.
Regarding germination, GA is involved in breaking seed dormancy and promoting the growth of the embryonic plant.
It stimulates the production of hydrolytic enzymes like a-amylase, which enable the hydrolysis of starch reserves in the endosperm, providing the energy needed for germination and seedling establishment.
Additionally, GA helps in cell elongation and division, promoting the growth of the embryo and the emergence of the radicle.
Evidence for GA's role in both processes includes studies where the exogenous application of GA to seeds or plant tissues has been shown to enhance a-amylase production and promote germination.
Conversely, inhibiting GA synthesis or action results in reduced a-amylase activity and impaired germination. These findings support the critical involvement of GA in both a-amylase production and germination processes in plants.
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Which situation could cause an ecosystem to lose its equilibrium?
A. Competition among species
B. Interdependence among species
C. Arrival of a nonnative species
D. An increase in the population of a keystone species
Answers
Answer: C
Explanation: the ecosystem is metastable, so an increase in the keystone species would be accommodated. Introductionof a nonnative species is likely to generate significant biotic change to the environment.
An example of a Climate Change scenario
Answers
Answer: global warming
Explanation:
A climate change scenario could involve a city experiencing an increase in extreme weather events, such as hurricanes, floods, and droughts.
The rising global temperatures caused by increased greenhouse gas emissions from human activities can contribute to these extreme weather patterns.
As a result, the city may need to invest in infrastructure to withstand the impacts of these events, such as building sea walls to protect against flooding and implementing water conservation measures during droughts.
In addition, the city may need to adapt its emergency response plans to address the increased frequency and severity of these extreme weather events. This is just one example of a potential climate change scenario that could impact a community.
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Assuming that the human population on Earth will peak sometime in the twenty-first
century, the twenty-second century will witness a declining world population. Discuss
how you imagine life in the twenty-second century will be in terms of the use of
nonrenewable and renewable resources, economic and social development, and quality
of life.
Answers
Answer:Non renewable resources will have declined to be scarce and renewable resources will not be able to keep up with the major population leaving a starvation problem.
The dependency on nonrenewable resources will lead to various life threats in coming times because they decline in their quantity and one day there will be scarcity.
What do you mean by Non-renewable resources?Nonrenewable resources may be defined as a substance that is being used up more quickly than it can replace itself.
Renewable resources are found in excess amounts and capturing them is a great sign of coming life. It is required to reduce your dependency on nonrenewable resources. As we all see during the corona pandemic, the economy of most countries rapidly declines. It affects the quality of life as well. So, it must be said that the twenty-second century will witness a declining world population.
Therefore, it is well described above.
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A student placed a prepared slide on the stage of a light microscope. Describe how to adjust the microscope to view the slide at a magnification of x400.
Answers
Here are the steps for viewing a slide at 400X magnification: In a compound and light microscope, prepare a slide and keep it near the objective lens at all times. Put a 10X magnification ocular lens in the area of the microscope.
How does 400x magnification work?You can see a very detailed image of the specimen on your slide thanks to the 400x total magnification that a high-power optical system and a 10x eyepiece provide.
Which focus knob at 40x 400x is simpler to use?The coarse focus knob or fine focus knob, respectively, will be the ones that are simpler to use at 40X and 400X. At low magnifications, like 40X, the coarser focus knob is simpler to operate because it makes it easy to focus the specimen more quickly.
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Please answer the following 4 questions regarding genetics.
Answers
Answer:
1. Carol is heterozygous for hemophilia. Her husband does not carry the allele for hemophilia. What is the probability that they will have a daughter with hemophilia? A son with hemophilia?
Solution:
Since Carol is heterozygous for hemophilia, she has one X chromosome with the hemophilia allele and one X chromosome without the hemophilia allele. Her husband, who does not carry the allele, has one X chromosome without the allele and one Y chromosome.
The probability that they will have a daughter with hemophilia is 0, as the daughter would need to inherit the hemophilia allele from both parents, which is not possible in this case.
The probability that they will have a son with hemophilia is 50%, as the son will inherit the hemophilia allele from Carol (who passes one of her X chromosomes to her son) and the Y chromosome from his father.
2. Jake suffers from red-green colorblindness. He married Janet who is not colorblind nor a carrier. What is the probability that they will have a daughter with color blindness? A son with colorblindness?
Solution:
Jake suffers from red-green colorblindness, which means he has a recessive allele for the condition on his X chromosome. Janet is not colorblind nor a carrier, which means she has two normal X chromosomes.
The probability that they will have a daughter with color blindness is 0, as the daughter would need to inherit the recessive allele for color blindness from both parents, which is not possible in this case.
The probability that they will have a son with color blindness is 50%, as the son will inherit the recessive allele for color blindness from Jake (who passes his X chromosome to his son) and a normal copy of the X chromosome from Janet.
3. William suffers from hemophilia. He married Sandra who is a carrier of the trait. What is the probability they will have a son with the disorder?
Solution:
William has hemophilia, which means he has a recessive allele for hemophilia on his X chromosome. Sandra is a carrier of the trait, which means she has one normal X chromosome and one X chromosome with the hemophilia allele.
The probability that they will have a son with hemophilia is 50%, as the son has a 50% chance of inheriting the hemophilia allele from Sandra (who passes one of her X chromosomes to her son) and a 50% chance of inheriting the Y chromosome from William.
4. Which of the following could be the parents of a colorblind female?
a) A normal male and a normal female (not a carrier)
b) A normal male and a female carrier
c) A colorblind male and a normal female (not a carrier)
d) A colorblind male and a female carrier
Solution:
A colorblind female can only occur if she inherits the recessive allele for color blindness onboth of her X chromosomes. Therefore, the only possible parents of a colorblind female are a colorblind male and a female carrier (option d).
Option a is not possible because both parents are normal and do not carry the color blindness allele. Option b is not possible because the female carrier would need to pass on the recessive allele for color blindness to the daughter, which is not possible as the daughter would inherit a normal X chromosome from the father. Option c is not possible because a normal female cannot carry the recessive allele for color blindness.
Hope this helps!
For any recessive disease to occur it is necessary that both the recessive alleles are expressed in the individual. 1) probability of a hemophilic daughter is 0 and a son is 50%. 2) Probability of a color-blind son is 50% and a daughter is 0. Hemophilic son - 50 %. 4) Option D is correct.
1) The probability that they will have a hemophilic daughter is zero. This is because to express the hemophilic trait one allele of the trait must be inherited from both the parents, but here the mother is a carrier while the father does not carry any allele for the disease.
The probability that they will have a hemophilic son is 50%. This is because he will inherit an X chromosome from his mother who is a carrier of the disease and one Y chromosome from his father.
2) The likelihood of having a color-blind daughter is 0 because the daughter would have to inherit the color-blind recessive allele from both parents.
The likelihood of having a color-blind son is 50% because the son inherits the color-blind recessive allele from Jake (through his X chromosome) and the normal X chromosome from Janet.
3) The likelihood of having a hemophiliac son is 50% because the son inherits 50% of the hemophilia gene from Sandra (passing one of her X-chromosomes to the son) and 50% of the Y-chromosome gene from William.
4) A colorblind woman can only become a colorblind woman if she has a recessive gene for color blindness in both her X-chromosomes. So, the only parents of a female who is colorblind are male and female carriers of the recessive gene.
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Recently, oil from rectangle resulted in a disaster and ecosystems containing many unique species. The potential loss of these species could result in
Answers
The potential loss of unique species due to a disaster is referred to as mass extinction. When large numbers of species disappear over a short time period then it is called mass extinction.
Biodiversity threats include burning fossil fuels and deforesting forests and other wildernesses for industrial agriculture. Other human activities, such as wildlife poaching and hunting, can also have serious impacts.
When ecosystem services no longer adequately meet social needs, biodiversity loss can have far-reaching, direct human health consequences. In addition, ecosystem services impact indirectly on livelihoods, incomes, local migration, and, in some cases, political conflict.
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Why there were no clear zones for using LB media with 1% olive oil for screening lipilytic bacteria
Answers
The reason for the clear zone may be that there is Insufficient lipolytic activity.
Why the clear zone?The absence of clear zones when using LB media with 1% olive oil for screening lipolytic bacteria could be due to Insufficient lipolytic activity.
Enzymes called lipases, which are produced by lipolytic bacteria, break down fats and oils. It's possible that the bacteria utilized in the experiment won't create lipases or have poor lipolytic activity, which would prevent them from efficiently hydrolyzing the olive oil in the media. There wouldn't be any observable clearing or lipid hydrolysis zones as a result.
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92ml 3.0 fl oz what is the ratio
Answers
The ratio between 92 mL and 3.0 fl oz is 46 : 44, or it can be further simplified to 23 : 22.
To find the ratio between 92 mL and 3.0 fl oz, we need to convert the units to a common measurement. Let's convert 3.0 fl oz to milliliters (mL).
1 fluid ounce (fl oz) is equal to approximately 29.5735 milliliters (mL).
Therefore, 3.0 fl oz is equal to 3.0 * 29.5735 = 88.72 mL (rounded to two decimal places).
Now we can express the ratio between 92 mL and 88.72 mL:
92 mL : 88.72 mL
Simplifying the ratio by dividing both sides by the greatest common divisor, we get:
46 : 44
So, the ratio between 92 mL and 3.0 fl oz is 46 : 44, or it can be further simplified to 23 : 22.
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Place the following taxonomy terms from the broadest, most inclusive terms to the most specific and exclusive group.1. Class2. Genus3. Order4. Subphylum 5. Family6. Kingdom7. Species8. Phylum9. Domain
Answers
These taxonomy terms that help scientists to classify species, are correctly placed as follows:
Domain
Kingdom
Phylum
Subphylum
Class
Order
Family
Genus
Species
Considering the human being, we have the following as an example:
Domain: Eukarya
Kingdom: Animalia
Phylum: Chordata
Subphylum: Vertebrata
Class: Mammalia
Order; Primates
Family: Hominidae
Genus: Homo
Species: sapiens
Choose the hypothesis for the controlled experiment that answers the question:
“Does feeding animals a high-protein diet build muscle?”
Feeding animals, a high-protein diet will do more harm than good.
If I eat a high-protein diet, then I will spend too much money. High-protein diets are too expensive.
If animals are fed a high-protein diet, then it will not cause them to build muscle.
High-protein diets are not healthy for animals.
Answers
High-protein foods are important for building muscles. So, if animals are fed a high protein diet, then this will not cause them to build muscles. Thus option C is correct.
What is a high-protein diet?A high-protein diet is a diet in which 20% or more of the daily calorie intake comes from protein. A high-protein diet helps increasing the muscular mass.
Various animal and plant sources provide the necessary building blocks of muscles i.e., MPS (Muscle Protein Synthesis). An MRI can be performed to check the muscle mass percentage.
Therefore, correct option is C.
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Which is true of pitch?
A: low frequency equals a soft sound
b: low frequency equals a loud sound
C: high frequency equals a high pitch
Answers
Answer:
c
Explanation:
Define each defense mechanism in your own word and write an example.
1. repression
2.regression
3. reaction formation
4. projection
5. rationalization
6. displacement
7. denial
Answers
Example: A person who experienced a traumatic event in their childhood may repress the memory of it and have difficulty recalling the details later in life.
Regression: Reverting to an earlier stage of development or behaving in a childlike manner in order to cope with stress or anxiety.
Example: A college student who is stressed about upcoming exams may start sucking their thumb or carrying around a stuffed animal.
Reaction formation: Expressing the opposite of one's true feelings in order to conceal or manage unacceptable impulses.
Example: A person who has repressed their feelings of anger towards their boss may go out of their way to be excessively friendly and accommodating to them.
Projection: Attributing one's own unacceptable thoughts, feelings, or impulses onto someone else.
Example: A person who is in denial about their own jealousy towards their partner may accuse their partner of being jealous or possessive.
Rationalization: Justifying or excusing one's behavior or feelings in a way that avoids acknowledging underlying fears or conflicts.
Example: A person who is trying to quit smoking may rationalize their decision to have "just one more cigarette" by telling themselves that they will quit tomorrow.
Displacement: Redirecting one's unacceptable feelings or impulses onto a less threatening target.
Example: A person who is angry at their boss but cannot express it may come home and yell at their spouse over something minor.
Denial: Refusing to acknowledge or accept an uncomfortable reality, thought, or feeling.
Example: A person who has a drinking problem may deny that they have a problem, despite clear evidence of the negative impact it is having on their life
which of these biomes has permanently forzen water in its soil? tundra chaparral savanna taiga
Answers
Answer:
these biomes has permanently frozen water in its soil is a tundra.
What do you notice about these two chemical equations how are they related
Answers
he first equation shows the complete ionic equation for the reaction between hydrochloric acid (HCl) and sodium hydroxide (NaOH). It shows all of the ions that are present in the solution, including the spectator ions.
What is eelimination reaction?The second equation shows the net ionic equation for the same reaction. It only shows the ions that participate in the reaction, and it eliminates the spectator ions. In this case, the spectator ions are the sodium ion (Na+) and chloride ion (Cl-), which do not participate in the acid-base reaction.
What is substitution reaction?The two equations are related in that the second equation is derived from the first equation by eliminating the spectator ions. The net ionic equation focuses on the key species involved in the reaction and simplifies the representation of the reaction.
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someone please help me ASAP pleaseee
Answers
Answer:
Option C is correct. 50% of the children will be able to roll their tongue
Explanation:
Available data:
The diallelic gene TR controls the ability to roll the tongueThe T allele expresses the ability to roll the tongue and is dominantThe t allele expresses the inability of tongue rolling and is recessiveWoman: Nontongue roller, ttMan: Heterozygous for tongue rolling, TtCross: the Man and the woman
Parentals) Tt x tt
Gametes) T t t t
Punnett square)
T t
t Tt tt
t Tt tt
F1) 2/4 = 1/2 = 50% of the progeny will be heterozygous tongue roller individuals, Tt
2/4 = 1/2 = 50% of the progeny will not be tongue rollers, tt
50% of the children will be able to roll their tongue
Review research and related literature on immigrant populations in the rural/ global environment
Answers
The impact of immigrant population in the rural and global environment is degradation in human ecology.
What is immigrant population and how the rural area and global environment are effected by it?The population that are migrated from the native place to the place where the population is either sent or migrated for some reason.There are lot of problems showed by the immigrant population as in the context of human ecology.Human ecology is getting disturbed by this migration as the population is getting more in rural regions of our country in compare to urban areas.Poor is getting poor and rich getting richer, to maintain the sustainable balance in the environment , it should be taken into concern.To know more about population visit:
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Which of the following best supports the big bang theory of the origin of the universe?
Answers
Answer:
The earliest and most direct observational evidence of the validity of the theory are the expansion of the universe according to Hubble's law (as indicated by the redshifts of galaxies), discovery and measurement of the cosmic microwave background and the relative abundances of light elements produced by Big Bang ...
Explanation:
Hubble's law best supports the big bang theory of the origin of the universe.
What are the features of Hubble's law?Hubble's law, which says simply that a galaxy's velocity (or as is sometimes plotted, its redshift) is directly proportional to its distance, also tells us something important about the state of the universe.
Hubble law is the exploration in big bang cosmology that the speed at which galaxies travel away from the Earth is directly related to their distance.
Edwin Hubble provided the first observational evidence for the universe having a finite age. Using the largest telescope of the time, he discovered that the more distant a galaxy is from us, the faster it appears to be receding into space.
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You have isolated a plasmid from E. coli. You get the following results, using three restriction enzymes, 1) XhoI, 2) BamHI, and 3) EcoRI to perform six different digestions: single digests using each enzyme alone and double digests using each combination of two enzymes.
enzyme #fragments size (in kb)
XhoI 1 10
BamHI 2 3.75, 6.25
EcoRI 2 4.25, 5.75
XhoI+BamHI 3 1.25, 3,75, 5
XhoI+EcoRI 3 2, 3.75, 4.25
BamHI+EcoRI 4 1.25, 2.5, 3, 3.25
Drag the appropriate labels to their respective targets.
Answers
Restriction enzyme BamHI and EcoRI will cut the plasmid at its respective sites i.e BamHI and EcoRI site mentioned in above diagram.
(I)EcoRI only-it will cut the plasmid at EcoRI site which is only one in the above plasmid.So the circular plasmid will converted into a linear one with same size i.e (4+2.5+3.5)kb=10kb
(II)BamHI only-it will cut the plasmid at two BamHI site present on the plasmid resulting into 2 fragment of plasmid having size 3.5kb and 6.5kb(4kb+2.5kb).
(III)Both BamHI and EcoRI will cut the plasmid at their respective sites (3 sites-one EcoRI and two BamHI sites) resulting into 3 fragments of plasmid having size 4kb,2.5kb and 3.5kb.
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Write any two differences between cell and tissue. need help ASAP;(
Answers
Answer:
Cells and tissues are both structurally introduced in all organism and both have equal importance. There are no tissues without the cells and cell make-up the different types of tissues in all multicellular organisms. A cell is mainly found in every living organism.
Write a 500-word research report on a pathogenic bacterium that is not discussed in this unit (you may choose one from the table in the pathogenic bacteria section of the Eubacteria lesson). Include the history, the scientific name of the bacterium, vectors, symptoms, etc.
Answers
We wrote a 500-word research report on Salmonella
SalmonellaSalmonella (Salmonellosis) is a bacterium of the Enterobacteriaceae family that causes food poisoning and, in rare cases, can cause serious infections and even death.
Salmonella is a bacterium that has two species that cause disease in humans:
S. enterica S. bongori.Salmonella enterica, of major public health relevance, is composed of six subspecies.
Transmission occurs with the ingestion of food contaminated with animal feces, the bacteria is normally found in animals such as
ChickensPigsReptilesAmphibiansCows and even domestic animals such as dogs and cats.In this way, any food that comes from these animals or that has come into contact with their feces can be considered routes of transmission of Salmonella (Salmonellosis).
With this information, we can complete the 500 word research report on Salmonella.
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Which of these fields of science is the study of relationships among
organisms and between organisms and their environment?
O A. Hydrology
B. Meteorology
C. Geography
D. Ecology
Answers
Answer:
ecology is the answer of tis question
A(n)
is a pure substance that cannot be broken
down into other substances.
Answers
A(n) is a pure substance that cannot be broken down into other substances element.
An element is a pure substance that cannot undergo a chemical reaction to transform into another substance. Atoms are a substance's building blocks, making it an element. One thing unites these atoms: they all share the same atomic number, which is the sum of the protons in each atom's nucleus.An interaction between two or more compounds to create one or more new substances is known as a chemical reaction. Reactants are the substances that participate in a chemical reaction, while products are the compounds that are created during a chemical reaction.To know more about pure substance visit:
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biological term for the germ layer that gives rise to the nervous system
Answers
material used as the membrane c or v
Answers
A laboratory procedure is described as a step by step process that highlights how to safely and correctly execute an experiment or actions in a laboratory environment.
Which category does each of the procedures belong?The molecule size of the starch and glucose were all constant. (C)
Material used as membrane was also constant. (C)
The amount of substances used varied (V)
The number of trials varied (V)
The process of diffusion via the membrane is variable (V)
The actual order becomes: v c c c v
A variable factor is one that changes in relation to other factors during th experiment or laboratory process.
While those that are constant are those that must remain as they are in order to establish standards and control.
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A section of a DNA molecule that codes for proteins is called ___ *
gene
chromosome
deoxyribose
cytosine
A verson of a gene is called a(n) *
allele
gamete
genotype
phenotype
In eukaryotes, chromosomes are composed of DNA wrapped around proteins. What is this combination called? *
histones
chromatin
genes
nucleosomes
Select the mutation that would most likely have a harmful effect on an organism. *
There is not enough information to know whether a mutation would be harmful.
A deletion of three bases near the center of a gene.
All mustations have a harmful effect on organisms.
A substitution of a thymine for an adenine.
The Central Dogma states: DNA gets __________ into _____________, which gets _________________ into a ________________________ *
translated : RNA : transcribed : protein
transcribed : RNA : translated : protein
translated : DNA : transcribed : RNA
transcribed : DNA : translated : RNA
During DNA replication, what would happen if a cytosine base is substituted for a thymine base? *
The cytosine base would pair with adenine when the DNA was replicated.
The sequence could code for the wrong amino acid during translation.
The entire segment of DNA would be affected.
There would be no effect on the DNA.
Identify the first step of protein synthesis. *
DNA unzips between the base pairs.
A ribosome attaches to the mRNA.
Amino acids are linked together with peptide bonds.
tRNA carries amino acids to the ribosome and attaches them to the mRNA strand.
The matching DNA strand to the one in the figure below, reading from the bottom up, would be *
Captionless Image
AGCT
AGCU
TGCA
UCGA
What is the base sequence of the DNA gene that originally produced the mRNA codon AGU? *
UAC
TCA
TCC
AGU
Which statement is true about cystic fibrosis? *
Cystic fibrosis affects a person's ability to make normal red blood cells.
Cystic fibrosis is caused by a mutation in which a dominant allele replaces a recessive allele.
Cystic fibrosis is caused by a deletion of one codon in the DNA molecule.
Carriers of cystic fibrosis have an advantage over people who do not have the mutation.
How is the CRISPR technique beneficial in creating GMOs? *
Precise traits can be chosen to produce viable organisms more quickly.
It eliminates all risk of mutation.
Diversity within species can continue to increase through crossbreeding.
CRISPR can result in infertile hybrids.
Which regulation step in eukaryotic cells removes sections of RNA called introns? *
RNA processing
post-translation
chromatin remodeling
mRNA life span
Select the statement that best describes why Punnett squares are useful. *
Punnett squares are used to predict how recessive alleles are inherited.
Punnett squares are used to predict how dominant alleles are inherited.
Punnett squares are used to predict all possible allele combinations and their frequencies in offspring.
Punnett squares are used to predict the most likely allele combinations of the parents in a cross.
In mice, black fur is dominant (B) to brown (b) fur. Assuming this gene follows a Mendelian inheritance pattern, what would the phenotype a mouse be if it's genotype is Bb. *
fur with brown hairs
fur with both black and brown hairs
fur with yellow hairs
fur with black hairs
What is the probability of producing a short plant when a tall, heterozygous pea plant is crossed with a tall, heterozygous pea plant? *
0%
25%
50%
75%
Option 2
In mice, a long tail is dominant to a short tail. If a long-tailed heterozygous mouse is bred with a short-tailed mouse, what percentage of the offspring will have short tails? *
0%
25%
50%
75%
100%
Option 3
Epistasis is when the allele of one gene masks the effects of another gene. Using the Punnett square above, what color would a dog's fur be it its genes are aabb? *
Captionless Image
white
yellow
brown
black
Which of the following is an example of codominance? *
black and yellow coat color in Labrador retrievers
black and brown spotted coat color in horses
seed shape in pea plants
tall and short plants heights
How are new viruses made? *
sexual reproduction
asexual reproduction
viral DNA or RNA copied by viral cells
viral DNA or RNA copied by a host cell
Answers
see below for answer :) sorry for some it required pictures of diagram which is not attached so I wasn't able to do them.
Explanation:
A section of a DNA molecule that codes for proteins is called ___ *
gene
A verson of a gene is called a(n) *
allele
In eukaryotes, chromosomes are composed of DNA wrapped around proteins. What is this combination called?
histone
Select the mutation that would most likely have a harmful effect on an organism. *
There is not enough information to know whether a mutation would be harmful.
The Central Dogma states: DNA gets __________ into _____________, which gets _________________ into a ________________________ *
translated : RNA : transcribed : protein
transcribed : RNA : translated : protein
translated : DNA : transcribed : RNA
transcribed : DNA : translated : RNA
During DNA replication, what would happen if a cytosine base is substituted for a thymine base? *
The sequence could code for the wrong amino acid during translation.
Identify the first step of protein synthesis. *
DNA unzips between the base pairs.
The matching DNA strand to the one in the figure below, reading from the bottom up, would be *
Captionless Image
AGCT
AGCU
TGCA
UCGA
What is the base sequence of the DNA gene that originally produced the mRNA codon AGU? *
TCA
Which statement is true about cystic fibrosis? *
Cystic fibrosis affects a person's ability to make normal red blood cells.
How is the CRISPR technique beneficial in creating GMOs? *
Precise traits can be chosen to produce viable organisms more quickly.
It eliminates all risk of mutation.
Diversity within species can continue to increase through crossbreeding.
CRISPR can result in infertile hybrids.
Which regulation step in eukaryotic cells removes sections of RNA called introns? *
post-translation
Select the statement that best describes why Punnett squares are useful. *
Punnett squares are used to predict the most likely allele combinations of the parents in a cross.
In mice, black fur is dominant (B) to brown (b) fur. Assuming this gene follows a Mendelian inheritance pattern, what would the phenotype a mouse be if it's genotype is Bb. *
fur with brown hairs
What is the probability of producing a short plant when a tall, heterozygous pea plant is crossed with a tall, heterozygous pea plant? *
25% because they are both heterozygous
Option 2
In mice, a long tail is dominant to a short tail. If a long-tailed heterozygous mouse is bred with a short-tailed mouse, what percentage of the offspring will have short tails? *
50%
Option 3
Epistasis is when the allele of one gene masks the effects of another gene. Using the Punnett square above, what color would a dog's fur be it its genes are aabb? *
Captionless Image
white
yellow
brown
black
Which of the following is an example of codominance? *
black and brown spotted coat color in horses
How are new viruses made? *
sexual reproduction
asexual reproduction
viral DNA or RNA copied by viral cells
viral DNA or RNA copied by a host cell
What do diatoms and krill have in common?
Answers
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=> Diatoms and Dinoflagellates are single-celled, eukaryotic algae. Both reside in marine environments. They are types of phytoplankton.
Blood types result from three possible alleles. The alleles for types A and B are codominant. The allele for type O is recessive to both A and B. The genotype AA and Al resultsin type A: BB and Bi results in type B: AB results in type AB, il results in type o. What blood types are possible in the children of parents with type AB and blood?A.B, AB, and oA, B, and ABA, B, and oA and B
Answers
Drawing the Punnet square:
We se that the possible blood types for the children are: A, B and AB.
(Biology)(100 Points) How are models used?
Why do scientists and engineers use models?
What is the difference between an open and closed system?
What are some types of models?
Why might a model change over time?
(please explanation if possible)
Answers
Answer:
Models are used to represent aspects of the natural world that are too small, large, complex, or difficult to observe or explain directly.
Scientists use models in order to assist in the visualization of current knowledge of a system in the state that it is in at the present time.
Visual models, mathematical models, and computer models.
Models change over time as technology and equipment improve and ideas become modified.
Remember to revise these in your own words.
Answer
Explanation:
Scientists and engineers use models to test theories and/or use as examples
I don't know the second one
A model might change due to new information
Also yea college language am I not allowed to joke on an answer?!?