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Artyom0805 [142]
3 years ago
5

Hurry pleaseeee

Biology
2 answers:
rosijanka [135]3 years ago
7 0

Answer:

what are the options

Explanation:

Nat2105 [25]3 years ago
5 0

Answer:

(three) crossing over, mutations caused during crossing over, and independent assortment.

Explanation:

Because of recombination and independent assortment in meiosis, each gamete contains a different set of DNA. This produces a unique combination of genes in the resulting zygote. Recombination or crossing over occurs during prophase I.

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Jill is heterozygous for gene A and is going to have a child with Jack, who is homozygous recessive for gene A. Which of the fol
Igoryamba

Answer:

D. Aa

Explanation:

Given:

Jill (mother) is heterozygous for gene A --------- i.e Jill = Aa

Jack (father) who is homozygous recessive for gene A-------- i.e Jack = aa

Now if both cross and fertilization occurs, we have:

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a        Aa        aa

The offsprings are (Aa, Aa, aa, aa)

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Therefore the result of these fertilization of a normal haploid sperm with an egg that had undergone nondisjunction in meiosis yields offspring with genotype Aa of their Mother (Jill).

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3 years ago
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Answer:

The correct answer is B respiratory system

Explanation:

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