Common fruit flies, drosophila melanogaster, have been used as model organisms to study inheritance in animals for many years. Flies with the yellow body phenotype make no melanin. Look at the image above to see diagrams representing the wild-type and yellow body flies. In an experiment, karen crossed a true-breeding line of wild-type flies with yellow body flies. All the offspring of those crosses were wild-type. Then karen crossed the offspring with each other. She got 328 yellow body flies and 1014 wild-type flies. What is the probably inheritance pattern for the yellow body allele?.
Answers
The probable inheritance pattern for the yellow body allele in the experiment is recessive.
Based on the results of Karen's crosses, where all the offspring from the initial cross between wild-type and yellow body flies were wild-type, it indicates that the wild-type phenotype is dominant over the yellow body phenotype. This suggests that the yellow body allele is recessive to the wild-type allele.
When Karen crossed the offspring with each other, she obtained 328 yellow body flies and 1014 wild-type flies. This ratio of approximately 1:3 (328:1014) is consistent with a typical 3:1 ratio observed in a Mendelian inheritance pattern for a recessive allele. This pattern suggests that the yellow body phenotype is expressed only when an individual carries two copies of the yellow body allele (homozygous recessive).
In summary, based on the observed results of the crosses, it is likely that the yellow body allele follows a recessive inheritance pattern in fruit flies (Drosophila melanogaster).
To learn more about, Inheritance Pattern, click here, https://brainly.com/question/29776464
#SPJ11
Related Questions
I’m not sure what to put and I been on this question for a minute?!!
Answers
Answer:
For the growth of cells and tissues, and to well, produce more cells.
Explanation:
Cells are important for all organisms, from humans to singlecelled organisms. Cells do “die” and new cells are needed to carry out bodily functions.
What organelle contain dna tightly packed into chromosomes?
Answers
Answer:
nucleus
The nucleus itself is filled with liquid (called nucleoplasm) and is similar in structure and function to cytoplasm. It is here within the nucleoplasm where chromosomes (tightly packed strands of DNA containing all our blueprints) are found.
GIVING OUT A LOT OF POINTS FOR THIS, DONT USE ME OR IMA REPORT
(More than 1 correct answer) Viruses cannot reproduce on their own, but inject their _______________ into living cell in order to make copies of themselves.
Answers
Answer:
Viruses cannot reproduce on their own, but inject their DNA into living cells in order to make copies of themselves.
Explanation:
A virus cannot reproduce itself outside the host because it lacks the complicated machinery that a [host] cell possesses.
Describe three examples of how metrology can improve the safety of automobiles
Answers
Answer: They can stop letting smoke come out from the back. Limit Their Driving. Throw away all the old used cars.
Explanation:
What 3 structures do plant cells have that animal cells do not have?
Answers
Answer:
A cell wall, chloroplasts, plastids, (and in some cases vacuoles but they are sometimes present in both)
Explanation:
100 POINTS! AND BRAINLIEST! PLEASE HELP ME ASAP!
Think about the process of raising the pendulum to one side and letting it go. For this event, create a list of each form of energy associated with the pendulum as it cycles.
PLEASE HELP ASAP! WILL GIVE BRAINLEST AND MORE POINTS!
Answers
Answer: Answer will be provided below, I would advise you to pay attention so you are not in a hurry like you are in now. Your Welcome
Explanation:
List I made:
Potential energy - As the pendulum is raised to one side, it gains potential energy due to its elevated position with respect to the ground.
Kinetic energy - As the pendulum is released and begins to swing back and forth, it gains kinetic energy due to its motion.
Gravitational potential energy - As the pendulum swings back and forth, it moves within the gravitational field and thus possesses gravitational potential energy at different points in its cycle. This energy is highest when the pendulum is at its highest point on one side of its swing.
Elastic potential energy - The pendulum swings back and forth because of the force of gravity pulling it towards its equilibrium position. As it moves towards this position, it gains elastic potential energy which is converted into kinetic energy as it swings in the opposite direction.
Frictional energy - As the pendulum swings back and forth, it encounters frictional forces that slow down its motion. This results in the gradual loss of energy over time, which eventually causes the pendulum to come to a stop.
sandra has taken up bodybuilding and is starting to become more interested in a diet to improve athletic performance. she read an article in a bodybuilding magazine that said she should dramatically increase her dietary protein intake. what happens to protein when it is consumed in excess of the body's needs? multiple choice excess amino acids are excreted in the urine. the extra amino acids increase muscle protein synthesis. excess amino acids are used to meet energy needs or converted to and stored as fat. all of the above are potential results of excessive dietary protein intake.
Answers
When protein is taken in excess of the body's demands, extra amino acids can be utilised to meet energy needs or transformed to and stored as fat.
What portion of the amino acid will transform into urea when protein intake is excessive?When you consume proteins, your body turns them into amino acids.. Amino acids that are left over form ammonia, which the body must expel. Many molecules (enzymes) produced by the liver convert ammonia into urea,
What occurs when the body has too much protein and how does the body react when there is not enough protein?While an excess of amino acids is often eliminated, an excess of protein is typically retained as fat. Over time, this may result in weight increase, particularly.
To know more about amino acids visit:-
https://brainly.com/question/29772733
#SPJ1
I will mark BRAINLIEST!!! Just answer this question, please!!!
The NADH produced in glycolysis will be used in which step of cellular respiration?
1) Electron transport chain
2) Citric acid cycle
3) Krebs cycle
4) Photosynthesis
Answers
Fresh milk has several parts that a farmer can separate and sell. A farmer removed the top layer of fat from fresh milk. What property does the farmer use to separate the fat from the rest of the milk?
Answers
Answer: The fat has a lower density than the other parts of the milk.
Explanation:
Milk is a dairy product which is produced by the mammary gland of mammals such as cow, goat, pigs and even human beings used for the nourishment of their younger ones. Milk gotten for cow is usually processed and consumed by man. It's constituents includes the following:
-> water,
-> lactose
-> fat
-> protein and
-> minerals.
The fat component of milk can be separated by simply allowing the fresh milk to stand for a period of time and the top layer of fat removed. This is possible because fat has a lower density than the other parts of the milk. In the dairy processing, when fresh milk is allowed to stand for a period of time, the fat globules would begin to rise to the surface in a phenomena called creaming.
Answer: Density
Explanation:
I just took the quiz
Granite is an igneous rock which is not easily___
by chemical or physical processes.
Help plzzzz
Answers
Answer:
Eroded.
Explanation:
Granite is pretty much impervious to natural weather.
What does it mean to translate something?
(No copy and paste answers I’ll give you Brainliest)
Answers
Answer:
When creating proteins from mRNA templates .
Explanation:
The nucleotide sequence on the RNA is translated into amino acid sequence of proteins. This is carried out by ribosomes.
A developer wants to build a hotel along the Indian River Lagoon estuary in Florida. What impact
would this most likely have on the estuary?
1.) Decreased salinity of the estuary water
2.) Increased primary productivity in the estuary
3.) Loss of breeding and nursery grounds for marine species
4.) Loss of coral reefs and the species that live there
Answers
If this e-stuary is converted to a place used to build a hostel, there will be loss of breeding grounds for marine species.
What is an e-stuary?An es-tuary is a point where salt water and fresh water meet. The es-tuaries are characterized by changes in salt concentration.
Now, if this estuary is converted to a place used to build a hostel, there will be loss of breeding grounds for marine species.
Learn more about e-stuary: https://brainly.com/question/11438518
The estimated percentage of cancers that are due to poor diet and lifestyle habits is approximately Group of answer choices3/41/21/31/4
Answers
Solution:
A large body of literature indicates that 30% to 40% of all cancer cases are related to poor dietary or lifestyle habits.
That is equivalent to 1/3.
So that the correct answer is:
1/3
which choice below is the correct phylogenetic order from largest, most inclusive group to smallest, most exclusive group?
Answers
The correct phylogenetic order from largest, most inclusive group to smallest, most exclusive group is Protostomia > Ecdysozoa > Arthropoda > Insects. The correct answer is option b.
Protostomia > Ecdysozoa > Arthropoda > Insects
This order represents the hierarchical classification of these groups:
1) Protostomia: This is a major division of the animal kingdom, including organisms in which the mouth develops from the first opening in the embryo (blastopore). It encompasses a wide range of invertebrate phyla.
2) Ecdysozoa: This is one of the major evolutionary lineages within Protostomia, consisting of animals that undergo ecdysis, or molting. Ecdysozoa includes various phyla such as Arthropoda and Nematoda.
3) Arthropoda: This is a phylum within the subbranch Ecdysozoa, and it includes a diverse range of invertebrate animals, such as insects, crustaceans, arachnids, and more. Arthropods are characterized by their segmented bodies, jointed appendages, and exoskeletons.
4) Insects: This is a class within the phylum Arthropoda, specifically referring to a group of arthropods characterized by having three pairs of legs, one pair of antennae, and typically two pairs of wings (although some species have lost their wings).
Therefore, the correct phylogenetic order, from largest to smallest group, is Protostomia > Ecdysozoa > Arthropoda > Insects.
So, the correct answer is option b. Protostomia > Ecdysozoa > Arthopoda > Insects.
The complete question is -
Which choice blow is the correct phylogenetic order from largest, most inclusive group to smallest, most exclusive group?
a. Ecdysozoa > Arthropoda > Protostomia > Insects
b. Protostomia > Ecdysozoa > Arthopoda > Insects
c. Ecdysozoa > Protostomia > Arthopoda > Insects
d. Anthropoda > Protostomia > Insects > Ecyysozoa
Learn more about phylogenics here:
https://brainly.com/question/30416143
#SPJ11
If one side of DNA molecule has the sequence ATCCGTGAA, what will be the sequence of the nitrogen bases on the other side?
Answers
Answer:
TAGGCACTT
Explanation:
the other side of DNA will have the other base from the pair. T pairs will A and G pairs with C.
which of the following is false? the majority of bacteria grow in neutral ph. molds and yeasts grow between ph 5 and 6. bacteria found in acidic conditions also have acidic cytosolic ph. fungi prefer a more acidic environment. acidophiles can grow in acidic environments.
Answers
The statement that the majority of bacteria grow in neutral pH is false.
Many bacteria can grow in acidic conditions, and in fact, some acidophiles (bacteria that thrive in acidic environments) have an acidic cytosolic pH.
Fungi, including molds and yeasts, typically prefer a slightly more acidic environment, with optimal growth occurring at a pH between 5 and 6. Therefore, the false statement is "the majority of bacteria grow in neutral pH."
The false statement is: "bacteria found in acidic conditions also have acidic cytosolic pH." Bacteria that live in acidic environments maintain a near-neutral cytosolic pH to protect their cellular components and function properly.
To know more about bacteria click here
brainly.com/question/31123224
#SPJ11
Plz Help!!!
Which fossil fuel has had the most significant influence on human transportation over the last century? (1 point) hydrogen coal natural gas petroleum
Answers
Answer:
Petroleum.
Explanation:
I was also thinking natural gas but petroleum has had more of an influence on transportation and has been used more.
Answer: D. Petroleum
Explanation: Petroleum, or crude oil, is another fossil fuel that has had a significant influence on human activity. Petroleum is a liquid found beneath Earth's surface. It can mined or drilled and refined into products including gasoline and diesel oil. It is the largest source for energy consumption in the United States. Hope this helps! ^_^
How often should observations be made in a simulation of natural selection??
Answers
Answer:
A minimum of 3 observations will produce reproducible results
Explanation:
Often, when simulations are carried out to observe for natural selection, it will be safe to conduct >3 observations to reduce the likelihood of errors. Errors could affect the reproducibility of the results which researchers will not want to compromise. The models ( for example the physical natural selection simulation or the virtual natural selection simulation methods) that are used provide for more observations to be made to ensure more accurate results and interpretations are obtained.
What makes water molecules polar?
A.The atoms of a water molecule have linear bonds and equal electronegativities
B. The ability to covalently bond to other water molecules and distribute equal sharing of electrons
C. The hydrogen atoms are slightly positive, and the oxygen atoms are slightly negative
D. The hydrogen atom of a water molecule has high electronegativity
Answers
Explanation: Water molecules that are polar are the ones that bond to each other. Hydrogen bonds are formed by hydrogen atoms that are positive and oxygen atoms that are negative.
Which would have more humus a desert or a forest
Answers
Answer:
a forest
Explanation:
thinks don't really grow in the desert
In which kind of plant would you expect to find the highest concentration of thigmotropic structures
Answers
In climbing plants, you would expect to find the highest concentration of thigmotropic structures.
Thigmotropism is a plant's directional response to touch or physical contact.
Thigmotropic structures help plants perceive and respond to touch stimuli, which is essential for climbing plants to navigate and secure themselves to supports. Examples of these structures include tendrils, twining stems, and adventitious roots.
Summary: Climbing plants possess the highest concentration of thigmotropic structures, enabling them to respond to touch and effectively attach themselves to supports.
Learn more about thigmotropic click here:
https://brainly.com/question/15784640
#SPJ11
Choose the types of alternative splicing patterns with the correct description of how they lead to the production of different protein isoforms. Select the three correct statements.
a)Alternative splice sites within an exon−different versions of an exon exist that allow for the presence of different domains in the protein.
b)Mutually exclusive exons−certain sequences are either included or excluded, which allows generation of proteins with different sequences.
c)Cassette exons−whole exons are excluded from the mature message, resulting in a protein that is missing certain sequences (perhaps an entire protein domain).
d)Alternative promoters−produce messages with different 5′ exons and proteins with different N-terminal ends.
e)Intron retention−introns are included in the mature mRNAs, which can be used only to produce novel isoforms of the protein.
f)Alternative polyadenylation−produces messages with different 3′ coding sequences as well as different 3′ untranslated regions, which can be important in regulatory events.
Answers
Alternative splicing patterns refer to the various ways in which exons and introns are combined to create different protein isoforms from a single gene. There are several types of alternative splicing patterns, but only three are correct in relation to how they lead to the production of different protein isoforms. These include:
a) Alternative splice sites within an exon: This type of alternative splicing pattern involves different versions of an exon that exist, allowing for the presence of different domains in the protein.
b) Mutually exclusive exons: In this pattern, certain sequences are either included or excluded, which allows the generation of proteins with different sequences.
c) Cassette exons: This pattern involves whole exons that are excluded from the mature message, resulting in a protein that is missing certain sequences (perhaps an entire protein domain).
By utilizing these alternative splicing patterns, genes can produce a wide range of protein isoforms with varying functions.
Your answer: The three correct statements about alternative splicing patterns that lead to the production of different protein isoforms are:
b) Mutually exclusive exons - Certain sequences are either included or excluded, which allows the generation of proteins with different sequences.
c) Cassette exons - Whole exons are excluded from the mature message, resulting in a protein that is missing certain sequences (perhaps an entire protein domain).
d) Alternative promoters - Produce messages with different 5′ exons and proteins with different N-terminal ends.
For more information on protein isoforms visit:
brainly.com/question/29840100
#SPJ11
what is the term used to describe the outward projection of the bones of the face below the eyes? quiz;et
Answers
The term used to describe the outward projection of the bones of the face below the eyes is "zygomatic arch."
The zygomatic arch, also known as the cheekbone, is a bony structure that forms a prominent part of the human facial skeleton. It is located beneath the eye socket and extends laterally, connecting the zygomatic bone to the temporal bone.
The zygomatic arch has several important functions, including providing attachment points for various facial muscles and protecting the delicate structures of the eye socket. Additionally, the zygomatic arch contributes to the overall shape and appearance of the face, giving it a unique structure and contour.
The arch also plays a crucial role in facial expressions, as the muscles that attach to it are responsible for various movements and expressions, such as smiling or frowning.
To know more about zygomatic arch click on below link:
https://brainly.com/question/30801246#
#SPJ11
( ENVIRONMENTAL SCIENCE DUE TODAY)
Some people argue that because Earth's resources are ultimately limited, nonstop economic growth is
A. not a problem
B. inevitable.
C. not sustainable.
D. highly desirable.
Answers
Answer:
Highly Desirable. DExplanation:
Hope this is correct. Good luck.Why are
there no gram-positive archaea species, but there are gram-positive
bacteria species?
Answers
Answer:
There are no gram positive archaea because archaea lack peptidoglycan in their cell walls, meaning that the archaeic cell walls are more similar to gram negative bacterial walls, although they do show a greater variety of cell wall types.
EXPLANATION
Bacteria can be divided into gram-positive bacteria and gram-negative bacteria because of their cell wall composition. The cell wall of gram-positive bacteria is made up of peptidoglycan which retains crystal violet stain and appears purple in color under microscope. The cell wall of gram-negative bacteria has an outer layer of lipopolysaccharide which do not retain crystal violet color and appear pink. The cell wall of archaea is not made up of peptidoglycan but is made up of pseudo-peptidoglycan, therefore, no gram-positive archaea species is present on the earth.
A green-striped dowop and a yellow-striped dowop have 12 offspring. Three of the offspring have green stripes, three have yellow stripes, and 3 have green and yellow stripes. The other 3 offspring do not have any stripes at all. What explains the different phenotypes of the offspring?
Answers
Answer:
Explanation:
Multiple alleles
Which of the following factors would make the smallest contribution to determining the climate of an ecosystem?
a.
precipitation patterns
b.
ocean currents
c.
geographic features such as mountain ranges
d.
magma under the earth's crust
Answers
Answer:
Latitude. ...
Elevation. ...
Ocean Currents. ...
Topography. ...
Vegetation. ...
Prevailing winds.
In which environment will decomposition occur the fastest?
A. The Arctic Ocean
B. Antarctica
C. The Sahara desert
D. The Amazon Rainforest
Answers
Decomposition will occur the fastest in Amazon rainforest.
What is decomposition?Decomposition is the process of breakdown of dead organic matter with the help of microorganisms like bacteria and fungi.Decomposition is necessary for the recycling of elements back into the ecosystem.The organisms resulting in decomposition are termed as decomposers. These require appropriate environmental conditions for decomposing.At low temperature such as in Antarctica, decomposers are less active thus reducing the rate of decomposition.Decomposers cannot survive in little or no water conditions such as in the Sahara desert. Decomposition increases with the increase in water availability.Decomposers also require oxygen to survive which is not available in deeper parts of the Arctic ocean. Therefore decomposition does not occur in low oxygen environment.With optimum water, temperature and oxygen available, rate of decomposition is also high in the Amazon rainforests.Learn more about decomposition here:
https://brainly.com/question/8692067
#SPJ1
"Based on the information given, are there toxicologu studies that
may he avioded because of special circumstances. three situations
are listed below, please list the rationale of they exist and any
sp
8 Here are some descriptions of a few molecules. Based on the information given, are there toxicology studies that may be avoided because of special circumstances. If so, then the cost and perhaps time of development may be reduced. Discuss these special dispensations, if they exist and the rationale why those studies may not be necessary; that is, everybody-even the risk averse deem these studies not useful in risk assessment. Large peptide molecule for the treatment of pruritus (itch) The therapeutic is applied topically and studies have shown that no measurable drug reaches the systemic circulation. The intended patient population includes adult and elderly males and females. Large protein molecule (human-specific) administered intravenously for the treatment of Inflammatory Bowel Disease. The intended patient population includes males and females above the age of 18 years. A small peptide (arginine-histidine-alanine-tyrosine) for the topical treatment of decubitus ulcers. When applied to dermal ulcers, some drug does reach the systemic circulation. The intended patient population is typically the elderly, though a lot of off label use is included in younger patients (eg. Quadriplegic or persistent coma).
Answers
Non-clinical systemic toxicity testing is required as the systemic exposure is anticipated.
There are toxicology studies that may be avoided because of special circumstances for the three molecules. Here are the reasons:For a large peptide molecule for the treatment of pruritus (itch):It is applied topically and studies have shown that no measurable drug reaches the systemic circulation. The intended patient population includes adult and elderly males and females. Therefore, non-clinical systemic toxicity testing is not required.For a large protein molecule (human-specific) administered intravenously for the treatment of Inflammatory Bowel Disease:Since the intended patient population includes males and females above the age of 18 years and the molecule is human-specific, non-clinical systemic toxicity testing can be avoided.
Moreover, animal studies may not be necessary.For a small peptide (arginine-histidine-alanine-tyrosine) for the topical treatment of decubitus ulcers:When applied to dermal ulcers, some drug does reach the systemic circulation. The intended patient population is typically the elderly, though a lot of off label use is included in younger patients (eg. Quadriplegic or persistent coma). Therefore, non-clinical systemic toxicity testing is required as the systemic exposure is anticipated.
learn more about toxicity
https://brainly.com/question/10997752
#SPJ11
“Some viruses are programmed to reproduce by identifying bacteria, killing them, and assembling new viruses.viruses do not eat the bacteria and do not grow after they are made. Viruses are not alive. Explain two reasons why.”
Answers
1. Viruses cannot reproduce on their own: Unlike living organisms, viruses cannot reproduce on their own. They need to infect a host cell and hijack the host cell's machinery in order to replicate themselves. Once they have infected a host cell, they use the cell's energy and resources to create new copies of themselves. However, they do not have the ability to reproduce outside of a host cell.
2. Viruses do not have the ability to carry out metabolic processes: Living organisms carry out metabolic processes, such as respiration and digestion, in order to obtain energy and nutrients. Viruses do not have the ability to carry out these processes on their own. They rely entirely on the host cell to provide them with energy and nutrients. In fact, viruses do not even have the necessary machinery to carry out these processes. They lack the organelles, such as mitochondria, that are responsible for energy production in living cells.