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Vikentia [17]
3 years ago
5

You are engaged in a project to breed new color variants in snakes. A certain chromosome carries three genes that all affect pig

mentation. Two of the genes, A and B are near each other on the chromosome, but gene C is further away. You are hoping to maintain the versions of the three genes from the maternal chromosomes in some of the grandchildren. What would you predict for the behavior of these genes during crossover in meiosis?
A. All three genes are equally likely to be separated by a crossover event, since these are randomly distributed.
B. The maternal chromosome will be transmitted as it is to half of the progeny.
C. The maternal chromosome will be transmitted as it is to all of the progeny.
D. Genes A and B are likely to stay together, but they are more likely to become separated from gene C since a crossover is more likely to occur in the longer space between them.
Biology
1 answer:
Aleksandr-060686 [28]3 years ago
5 0

Answer:

D. Genes A and B are likely to stay together, but they are more likely to become separated from gene C since a crossover is more likely to occur in the longer space between them.

Explanation:

Cross over between homologous chromosomes occurs during meiosis I. A synapsis is formed and non sister chromatids exchange genetic material between each other. If gene A and gene B are close to each other on a chromosome, they most likely will show linkage. During cross over these genes will have more probability to get inherited together from the parent and hence offspring with parental combination will be more in number. Since gene C is farther away from the two genes, it will show normal cross over and recombination. Offspring produced will have almost equal parental and new combination.

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compare and contrast the different types of heterotrophs Use the terms Carnivore, herbivore, and omnivore in your discussion to
Lunna [17]

Answer:

I'm not sure if your asking about a A, B, C, D question but, as far as I can tell this is what I know

Explanation:

(:Comparing:) Heterotrophs occupy the second and third levels in a food chain, a sequence of organisms that provide energy and nutrients for other organisms. ... Herbivores—organisms that eat plants—occupy the second level. Carnivores (organisms that eat meat) and omnivores (organisms that eat plants and meat) occupy the third level.

(:Contrasting:) Examples include plants, algae, and some types of bacteria. Heterotrophs are known as consumers because they consume producers or other consumers. ... Herbivores—organisms that eat plants—occupy the second level. Carnivores (organisms that eat meat) and omnivores (organisms that eat plants and meat) occupy the third level.

Hope this helps.

5 0
3 years ago
which of the following of mandels conclusions is a necessary foundation for Darwin's theory of natural selection
Kisachek [45]
Hey there!

Your answer is:

There are alternate versions of a gene.

Hope this helps!
Have a great day! (:
4 0
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babunello [35]

The right answer is higher-than-average sea levels.

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tatyana61 [14]
B. The law of Superposition
8 0
3 years ago
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Answer:

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Explanation:

(I do not take credit for the answer)

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