if an f1 plant is backcrossed to the parent with round sseds what proportion of hte progeny will have wrinkled seeds
Answers
Based on this observation round seeds is the dominant phenotype. With dominant being round seeds that would mean wrinkle seeds are the recessive trait. So 25% progeny will have wrinkled seeds.
In genetics, an organism's phenotype is its collection of external traits, which literally translates as "to appear, show, or shine." The expression references to the morphology, or physical shape and structure, of an organism as well as to its physiological and biochemical characteristics, behavior, and outcomes of that behavior. An organism's genotype, or how its genetic code is expressed, and the impact of its environment are the two primary determinants of its phenotype. There is a chance that both variables will interact, which would further affect phenotypic. If there are two or more distinct phenotypes of a species coexisting in the same population, that species is said to be "polymorphic." The coloring of Labrador Retrievers, whose coat color is influenced by a variety of genes, is a well-known example of polymorphism.
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Related Questions
What is the scientific term used for the chemical reaction when a fuel burns? (Hint: your answer should be one word.)
Answers
Answer:
Combustion
Explanation:
Combustion is the chemical reaction that happens when fuel burns.
9. Which of these describes the primary structure
of a protein?
A. the three-dimensional shape of the protein
B. the sequence of the amino acids in the protein
C. the arrangement of multiple polypeptide
chains
D. the folding of the protein into sheets and
spirals
Answers
The primary structure of a protein the sequence of the amino acids in the protein.
The correct option is B.
What are amino acid?Proteins are composed of molecules called amino acids. Proteins and amino acids are the elements of life. Amino acids are the byproducts of the digestion or degradation of proteins. Amino acids are being used by the body to create proteins that aid in the digesting of meals.
What makes amino acids so important?Body protein as well as other vital nitrogen-containing substances including creatine, peptidases, and some neurotransmitters cannot be formed without amino acids. Although limits are expressed in terms of protein, amino acids are a biological necessity.
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Summarize the lytic cycle. (1 point)
The viral DNA incorporates itself with the host cells and replicates whenever the host cell replicates itself.
A virus copies its genetic material and then splits its cell membranes in half to form identical viruses.
A virus lays eggs on the host cell’s protein coat, which then hatch and move on to infect other cells.
A virus injects its genetic material into the host cell, copies itself, and then forms new viruses that burst out of the host cell.
Answers
Answer: A virus injects its genetic material into the host cell, copies itself using the host's structures and resources, and then forms new viruses that burst out of the host cell
The lytic cycle is one of the two main life cycles of viruses, the other being the lysogenic cycle. In the lytic cycle, a virus infects a host cell and hijacks its cellular machinery to replicate and produce new virus particles, or virions.
The correct option is D .
The lytic cycle is rapid and results in the destruction of the host cell. It is often associated with acute infections, where the symptoms of the infection are more severe and appear relatively quickly. Examples of viruses that follow the lytic cycle include the flu virus (influenza), the common cold virus (rhinovirus), and many bacteriophages that infect bacterial cells.
The lysogenic cycle, on the other hand, is characterized by the integration of the viral genetic material into the host cell's genome, allowing the virus to remain dormant for a period before switching to the lytic cycle.
Hence , D is the correct option
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WRITE ABOUT A THEME: INTERACTIONS Organisms interact with each other and the physical environment. In a short essay (100-150 words), explain how the response of diatom populations to a drop in nutrient availability can affect both other organisms and aspects of the physical environment (such as carbon dioxide concentrations).
Answers
Diatoms are single-celled algae that form distinctive and beautiful cell walls from silica. They are widely distributed throughout the upper layers of the world's oceans, and can also be found in freshwater or humid environments such as the underside of plants. When nutrients are plentiful, large diatoms predominate at the trophic level of the producer, and copepods replace their diet of ciliated protists with diatoms. When nutrient levels are low, the proliferation of small algae outnumbers that of large diatoms, so copepods switch their diet and switch to feeding on ciliates.
What is the main characteristic of diatoms?The main morphological characteristic of diatoms is the cell wall impregnated with silica (SIO2. nH2O), surrounded by a thin layer of organic matter, known as FRUSTULA.
Whit this information we can conclude that When nutrient levels are low, the proliferation of small algae outnumbers that of large diatoms, so copepods switch their diet and switch to feeding on ciliates.
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The skin of out our nine major organs. Which of the following body parts have skin with the most nerves and therefore, more sensitivity than other
body parts
A) black
B) feet
C) hands
D) shoulder
Answers
The image below shows a comparison of a normal DNA sequence and a mutated DNA sequence that results in sickle cell disease.
Tyra and Sam were discussing how mutations can alter the DNA to cause genetic disorders. They learned in class that a frameshift mutation could alter an entire sequence while a
point mutation could alter a nucleotide.
Which type of mutation results in sickle cell disease? Include evidence or a description to support your choice?
Answers
Answer:
? hello gryjrdetgeyjjyuyuu
10. Which of the following organisms is lessly to be affected by rinderpest?
A Zebra B sheep C Giraffe D All
Answers
Compared to the number of chromosomes contained in a body cell, how many chromosomes would normally be contained in a gamete? 1 point A. The same number B. Twice as many C. 1/4th as many D. Half as many
Answers
Answer:
Option D, Half as many
Explanation:
Chromosome in parental cell is diploid i.e 2n
where as the gamete chromosome is haploid and is represented as "n"
Thus, chromosome number in gamete is just the half of the chromosome number of parent.
Hence, option D is correct
What kind of species can harm an ecosystem or human health when introduced into the new environment? A species whose introduction does or is likely to cause economic or environmental harm or harm to human health is a(n) species. These species are to the new environment.
Answers
This would be an invasive species which is not native to the environment. It can cause harm either because it over grows (if it's a plant.) Or if it's an animal, it will reproduce and most likely take over the environment. This is because it feels the need to compete for materials, but ends either taking most or all of it. Which then ruins the food chain depending on it's diet. If it's eating a plant, then other animals that eat that plant no longer have any food. And vice versa if it's feeding on animals. Other predators, no longer have their food.
Following meiosis I, the daughter cells are ________; following meiosis II, the daughter cells are ________; and following fertilization and mitosis, the daughter cells are ________.
Answers
Following Meiosis I, the daughter cells are Haploid. Following Meiosis II, the daughter cells are Haploid and following Fertilization and Mitosis, the daughter cells are Diploid.
In a diploid cell containing a complete set of chromosomes and DNA content, After Meiosis I, the number of chromosome reduces by half thereby producing two daughter cells that are haploid which is termed as the Reductional Division due to the reduction in the number of chromosome and reduction of DNA content by half. Hence, the cell becomes Haploid after Meiosis I.
After Meiosis II, the number of chromosomes remains half as compared to the Diploid cell and only the DNA content reduces to one fourth as compared to the diploid cell. It is similar to Mitosis or Equational Division since no change occurs in the chromosome number as compared to the daughter cell obtained after Meiosis I. Hence, the cell remains Haploid after Meiosis II
After Fertilisation of two haploid cells formed after completion of Meiosis, the cell become Diploid (due to the fusion) containing complete set of chromosome and DNA content. After Mitosis of the newly formed Diploid cell, the number of Diploid cells increases due to the formation of two daughter cells produced continuously. No change in the chromosome number or DNA content occurs.
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the effect of the environment on a phenotype is referred to as __________.
Answers
multifactorial. These environmental factors include nutrition, temperature, oxygen levels, humidity, light cycles, and the presence of mutagens. The term "phenotype" describes a person's observable characteristics, such as height, eye colour, and blood ratio.
An organism's phenotypic responses to its surroundings can be thought of as a mapping from the environment space to the phenotype space. A specific environmental stimulus that the organism encounters may cause a specific phenotypic to emerge. We examine that the alleles of the parent organisms and predict how frequently the offspring will exhibit those genes to determine a phenotypic ratio. Most of the time, we are aware of the expression and appearance of the alleles.
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which is the largest cell
Answers
Answer:
Neurons are the largest cells.
Even among those, the ones which come out of the spine and reach every part of your body.
And every part of your body is attached to your spine with a single neuron, which is also a single cell.
So from the tips of your finger runs a single neuron which goes all the way to your spine, yes, a single cell which is few feet in length.
Explanation:
Before the 1st cell division, describe what the chromosomes appear to do.
Answers
Answer: The chromosomes condense and the spindles assemble, then each set of chromosomes is surrounded by a nuclear membrane, and then the parent cell splits into two complete daughter cells.
Explanation:
how does hydropower and solar power work together?
Answers
Solar energy is energy that comes from the sun and is captured by solar cells. These cells transform the energy of photons of light into electrical energy. One mechanism is the energization of electrons, here the energy of the photons is transferred to the electrons, which can already be considered electric energy.
As for the hydroelectric energy, here the waterfalls or rivers flow driving a turbine, which will transform the movement into usable electric energy as it rotates.
if 0.1 ml of a 10 dilution of a culture is plated our and 65 colonies appear after incubation, how many cfu/ml were in the undiulted culture
Answers
To calculate the number of colony-forming units (CFUs) per milliliter in the undiluted culture, you'll need to use the information given:
1. 0.1 mL of a 10x dilution was plated.
2. 65 colonies appeared after incubation.
To calculate the number of CFU/ml in the undiluted culture, we need to use the formula:
CFU/ml = (number of colonies counted / volume plated) x dilution factor
In this case, the volume plated is 0.1 ml and the dilution factor is 10 (since we plated a 10-fold dilution). The number of colonies counted was 65.
So, CFU/ml =\((65 colonies / 0.1 ml) * 10 = 65,00 CFU/ml\)
Therefore, there were 65,00 CFU/ml in the undiluted culture.
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chemical equation for alcoholic fermentation.
Answers
Answer:
Glucose ---> Ethanol + Carbon Dioxide
How many different chromosome combinations are possible through independent assortment?
Answers
At the point when these chromosome matches are reshuffled through the free grouping, they can deliver eight potential mixes in the subsequent gametes: A B C.
Autonomous variety happens precipitously when alleles of something like two qualities are varying freely into gametes.
There are 8,324,608 potential mixes of 23 chromosome matches. Subsequently, two gametes practically never have the very same blend of chromosomes. Every chromosome contains handfuls to a great many various qualities.
Mixes of qualities because of autonomous variety can be determined utilizing the recipe 2n, where n is the number of chromosome matches. - Recall that people have 23 chromosomes! The potential mixes are in excess of 70 trillion.
Chromosomes should be visible under the magnifying lens in the metaphase phase of the cell cycle. 23 sets of chromosomes are available in every cell out of which 22 are autosomes and the 23rd is the sex chromosome.
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Cystic fibrosis is a genetic disorder in which a particular gene does not make protein the way that it otherwise normally would. Given that cystic fibrosis is a genetic disorder, how would an individual most likely contract this disease?
F A person’s parents would have to carry genetic material for cystic fibrosis within their chromosomes which could then be passed down.
G A person’s parents would have to carry genetic material for cystic fibrosis within their mitochondria which could then be passed down.
H A person would have to have been exposed to environmental influences such as living next to a nuclear power plant.
J Genetic disorders can be inherited in so many ways that it is impossible to tell how a person acquired the disease.
Answers
Answer:
Answer Is B
Explanation:
Just took the test
Which temperature scale was used if your body temperature was 37 degrees?
A. Kelvin
B. Fahrenheit
C. Newton
D. Celsius
Answers
Answer:
D. Celsius
Explanation:
Temperatures up to 37.3 and down to 36.7 are considered to be within the normal body temperature scale in Celsius.
Answer: D
i hope i answered your question.
A new chemotherapeutic drug kills bacteria but not humans. Discuss the possible ways the drug may selectively act on bacterial cells.
Answers
Chemotherapeutic agents may selectively act on bacterial cells by inhibiting peptidoglycan synthesis in the bacterial cell wall.
Why do chemotherapy drugs kill bacteria but not humans?Chemotherapy drugs can destroy bacterial cells by inhibiting peptidoglycan synthesis in the bacterial cell wall. Peptidoglycan is a unique, essential component polymer present in the cell wall of bacteria.
Antibiotics interfere with bacterial cell walls to prevent bacterial growth and proliferation. Human cells do not have cell walls, but many types of bacteria do, and antibiotics can attack bacteria without harming human cells.
How do bacteria become resistant to antibiotics?Mutation and selection allow bacteria to develop defense mechanisms against antibiotics. For example, some bacteria have evolved biochemical "pumps" that can remove antibiotics before they reach their destination, while others have evolved to produce enzymes that inactivate antibiotics.
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PLEASE HELP ME!!! (Number 9)
Answers
Answer:
all of they fill up space on each one the atoms are different but the all have atoms (solid atoms super close liquids kinda close gasses not close at all and they move alot)
Explanation:
What is the difference between velocity and acceleration?
A. Acceleration only occurs when speed changes.
B. Velocity is speed in a certain direction. Acceleration is a change in velocity.
C. Velocity tells the amount of acceleration an object is experiencing.
D.Velocity is a change in acceleration. Acceleration is velocity in a certain direction.
Answers
Answer:
B
Explanation:
Fire suppression has been an official management policy in a variety of Northern Ghana ecosystems. Discuss examples of how this has impacted community composition. Describe how these examples are either consistent or inconsistent with the predictions of the Intermediate Disturbance Hypothesis. Be sure to take into account various aspects of the disturbance regime (e.G. Frequency and intensity).
Answers
The answer to these questions are the following:
1. It has been suggested that fire suppression management might increase the area affected by increasing the frequency of high-severity fires in the Idaho-Montana Rockies (USA) and in the chaparral vegetation of California
2. Fire suppression>> alteration of composition, distribution, and density of species
3. Data are consistent with the intermediate disturbance hypothesis
Fire suppression management is a strategy focused on trying to stop wildfires. The fire suppression management strategy has recently been criticized for accumulating dead biomass in fire-prone ecosystems, thereby leading to high intensity and high severity fires when these areas do burn with wildfire. It has been shown that fire suppression may negatively alter the composition, distribution, and density of species (both animals and plants), especially in ecosystems having high-frequency and low-intensity fires.
In the Idaho-Montana Rockies (USA), it has been shown that high-severity fires increased their frequency in the period from 1975 to 2012 than in the period from 1935 to 1974, when the fire suppression management strategy coincided simultaneously with cooler and moister conditions that were conducive to them.
The intermediate disturbance hypothesis states that species diversity is maximized at intermediate-scale disturbances. There are many ecologists that disagree with this hypothesis, indicating that the association between ecological disturbance and species diversity does not follow a unimodal distribution. In the example of the Idaho-Montana Rockies, data are consistent with the intermediate disturbance hypothesis because the intermediate disturbance hypothesis indicates that species diversity is highest in areas that have had an intermediate frequency and scale of disturbances (i.e., a fire suppression strategy might decrease the frequency of wildfires but it increases the risk of high severity fires).
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Look at the cross section of a cell membrane of a eukaryotic cell. Na+ ions are being pumped from a low concentration to a high concentration.
How do you describe this type of transport across the cell membrane?
Plasma
membrane
Extracellular space
Sodium
AT p
Cytoplasm
Potassium
O
ggg
0
0
ADP
O
A. active transport
B. diffusion
C. facilitated diffusion
D. osmosis
Answers
True or False: The code is nonoverlapping, meaning that, assuming "standard translation," a given base participates in the specification of one and only one amino acid.
Answers
The statement about the code is non-overlapping, assuming "standard translation" a given base participates in the specification of one and only one amino acid is true.
What evidence shows the genetic code is not overlapping?The genetic code is а set of rules defining how the four-letter code of DNА is trаnslаted into the 20-letter code of аmino аcids, which аre the building blocks of proteins. The genetic code is а set of three-letter combinаtions of nucleotides cаlled codons, eаch of which corresponds to а specific аmino аcid or stop signаl.
There аre 64 possible permutаtions, or combinаtions, of three-letter nucleotide sequences thаt cаn be mаde from the four nucleotides. Of these 64 codons, 61 represent аmino аcids, аnd three аre stop signаls. Аlthough eаch codon is specific for only one аmino аcid (or one-stop signаl), the genetic code is described аs degenerаte, or redundаnt, becаuse а single аmino аcid mаy be coded for by more thаn one codon. It is аlso importаnt to note thаt the genetic code does not overlаp, meаning thаt eаch nucleotide is pаrt of only one codon-а single nucleotide cаnnot be pаrt of two аdjаcent codons.
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Which of these laws governs the conservation of resources
Answers
Answer: natural resources law.
Explanation:
which is a complex body of national and local laws, having both statutory and common-law components, that regulate the use and protection of natural resources
Demonstrate the process of osmosis in a living plant material
Answers
Answer:
To demonstrate osmosis by this experiment an egg is taken. On the pointed side of the egg a small hole is formed and all the white and yellow matter of the egg is taken out through this hole. Now the empty egg is placed in the dilute solution of hydrochloric acid (HCl), so that the hard shell of the egg constituted of calcium carbonate is dissolved in it
Explanation:
.
The layers of the Earth are described by their composition but not their mechanical properties. True or false
answer is false
edgen 2022
Answers
Answer:
False
Explanation:
The layers include mantle, crust, cores, lithosphere.
An experimenter moves the operator for the lactose operon to the far end of the operon (past all of the structural genes in the lactose operon). What would likely occur when the cell is exposed to lactose?
Answers
When the cell is exposed to lactose, the lactose operon will likely become constitutively active, resulting in continuous production of lactose-utilizing enzymes, regardless of lactose presence.
In the lactose operon, the operator is typically located between the promoter and the structural genes. When lactose is absent, a repressor protein binds to the operator, preventing transcription of the structural genes.
However, when lactose is present, it binds to the repressor, causing it to release the operator and allowing transcription to occur.
When the operator is moved past all structural genes, it can no longer interact with the repressor protein effectively. As a result, the repressor is unable to prevent transcription even in the absence of lactose.
This causes the lactose operon to become constitutively active, leading to continuous production of lactose-utilizing enzymes, such as beta-galactosidase, lactose permease, and thiogalactoside transacetylase, irrespective of the presence of lactose in the cell.
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What does every living thing have to have? *
Chloroplast
Nucleus
DNA
Answers
Answer:
DNA
Explanation:
Answer:
Explanation:
Los cloroplastos son los orgánulos celulares que en los organismos eucariotas fotosintetizadores se van ocupando de la fotosíntesis. Están limitados por una envoltura formada por las dos membranas concéntricas y contienen muchas vesículas, los tilacoides, donde se encuentran organizados los pigmentos y demás moléculas que convierten la energía lumínica en energía química, como la clorofila.
El término cloroplastos sirve alternativamente para designar a cualquier plasto dedicado a la fotosíntesis, o específicamente a los plastos verdes propios de las algas verdes y las plantas. Aunque el reciente descubrimiento adiciona a más individuos en la lista, como lo es en el caso de Elysia chlorotica, que al digerir al alga Vaucheria litorea, adquiere los cloroplastos a sus tejidos, y gracias a esto, puede realizar la fotosíntesis.