What leads to an individual having too many or two few chromosomes

1 answer:

4 0

Non-disjunction occurs when a the chromosomes do not split properly during meiosis resulting in too few chromosomes I believe.

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The nucleus is primarily stores most of the cell's *

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<u>Answer</u>:

The nucleus is primarily stores most of the cell's DNA.

<u>Explanation</u>:

It is made up of two chains which coils around each other, together they form a helical structure tat further carries the genetic information, which will help in the development, functioning and also the growth and reproduction in all known organism and in viruses. The nucleus is stored in it and the nucleus has the genetic material. They are composed of the nucleotides, in which each nucleotide has four nitrogen. These nucleotides are together joined with covalent bond to each other. Together they have the biological information.

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During protein synthesis, amino acids in the cytoplasm are picked up by molecules of

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During protein synthesis, amino acids in the cytoplasm are picked up by molecules of "tRNA" and are taken to the ribosome.

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Fur color in animals is frequently controlled by more than one gene. However, brown fur in rabbits is dominant over white fur. A

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Answer:

Please find how this is possible in the explanation below

Explanation:

This question is regarding a gene in rabbit coding for fur color. Brown fur (B) in rabbits is dominant over white fur (b). However, according to the question, a white female gives birth to all white rabbits, even though the father had brown fur. This is possible because the father is heterozygous for the brown fur i.e Bb.

Hence, in a cross between a heterozygous father (Bb) and a white mother (bb), the following gametes will be produced by the following parent:

Bb - B and b

bb - b and b

Using these gametes in a punnet square (see attached image), the probability of 1/2 of the offsprings will possess white fur (bb). Based on this result, the white female is able to give birth to all white rabbits because the male rabbit contributed the white allele (b).