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lora16 [44]
3 years ago
11

A gene that has two alleles, A and a, is located on the same chromosome as a second gene that also has two alleles, B and b. Sup

pose a diploid individual has alleles AB on one copy of this chromosome and alleles ab on the other copy of this chromosome. For this individual, select the pair of recombinant genotypes that could result if crossing over occurs between these two chromosomes.
1. AB and aB2. Ab and ab3. Ab and aB4. AB and ab
Biology
1 answer:
Llana [10]3 years ago
3 0

Answer:

The correct answer to the question: For this individual, select the pair of recombinant genotypes that could result if crossing over occurs between these two chromosomes, would be, 3. Ab and aB.

Explanation:

During meiosis, the copy and distribution of genetic information present in genes, and which happens when chromosomes are divided and then crossed over, is a pretty unique one.

Essentially, genetic recombination happens when genes cross over and combine with genes present close to them. This process does not always happen and it is the reason why we say that some gametes are parental, instead of recombinant; because the genes in the chromosomes, especially depending on factors like distance between them, do not combine.

In this particular case, given the way that genes will cross over and knowing how recombination works, we could say that the possible genotypical recombinants for AB on chromosome 1 and ab on chromosome 2 would be the ones offered in option 3.

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3 years ago
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Why is survival of the fittest misleading?
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What might happen if taxi and police radios used the same frequency band?
artcher [175]

Answer:Taxi's might get private police channels , and police radios would pick up unnecessary channels

Explanation: not sure if that's what you mean

4 0
3 years ago
Does anyone know how to answer this question? Please
Sergio [31]

Basically the question is asking you, out of these statements:

A) Meiosis results in four haploid daughter cells

B) Meiosis results in four diploid daughter cells

C) In both processes, DNA replication must occur

D) During meiosis the 2N mother cells produces N daughter cells

E) Mitosis is responsible for genetic continuity, in higher organisms it is essential for growth and repair

which one(s) are true. They provide you information (Venn diagram as well as paragraph) to help you solve this question.

The information tells us what's the correct answers.

Say for an example, the venn diagram tells us that unlike mitosis, during the process of meiosis the 2N mother cells produces N daughter cells (hence why you see the equation 2N ---> N only in meiosis' circle instead of in the middle [which signifies that both mitosis and meiosis shares this trait] or on mitosis' side [which signifies that only mitosis has this trait].) Therefore, D - or the fourth - answer choice is correct, so identify it as a true statement.

A - or the first answer choice - is correct as well. B - or the second answer choice - is not so do not identify it as true. In the paragraph it tells us that instead of two identical daughter cells with the same chromosome number (which is a diploid cell) and DNA, four daughter cells are produced with half the chromosome number, which is a haploid (think of half when you see haploid).

C - or the third answer choice - is right. In the paragraph is states that both processes have DNA replication take place. For mitosis it states "The parent cell goes through DNA replication(...)". For meiosis it states "(...) DNA replication still takes place (...)".

E - or the last answer choice - is correct. In the venn disgram, it has growth and repair under mitosis and the paragraph states that for mitosis, simple organisms use this process as a method of asexual production (which, by the way, maintains genetic continuity).

So, here's our recap:

A is a true statement. Identity it as true.

B is NOT correct thus do <em><u>not </u></em>identify it as true.

C is a true statement. Identify it as true.

D is true thus identify it as such.

E is too true. So, identify it.

Ways to identify includes and is not limited to:

* circling

* highlighting

* selecting

* writing T or true by what's true

* underlining the true statements

* checking the true statements with a check mark

You can signify B as untrue by writing F or false by it, crossing it out, putting an x by it, or simply leaving it be. It all depends on what you're able to do.

3 0
3 years ago
The number of differences between cytochrome c of humans and cytochrome c of other organisms is as follows: Rhesus monkey - 1 di
liubo4ka [24]

Answer:

The species that will be most similar to humans will be

1. rhesus

2. pigeon

3. fruit fly

Explanation:

Evolution can be described as the process in which different organism evolve from common ancestors over a long period of time. Evolutionary studies show that some organisms have more shared characteristics as compared with other organisms. These organisms with common characteristics are believed to be closer to one another and evolved from the same ancestors.

In the above question, as there is only one difference between the cytochrome c of humans and rhesus, hence rhesus is the closest to humans. Pigeons has lesser number of differences than fruit fly, hence it is second on the list. Fruit fly has the maximum differences hence it is placed last.

3 0
3 years ago
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