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ehidna [41]
3 years ago
10

Chromosome 21 figure D is the result of a process known as________

Biology
1 answer:
Softa [21]3 years ago
8 0

Answer:

Chromosome 21 in figure D is the result of a process known as non-disjunction

Explanation:

Meiosis is the process of cell division that serves to obtain gametes, cells with exactly half the chromosome load of the species. This process involves the equal distribution of chromosomes in each daughter cell.

Non-disjunction is an alteration in the separation of the sister chromatids during meiosis, resulting in a gamete with non-separated sister chromatids, which when joined to a normal gamete can produce an organism with an extra chromosome.

In the karyotype shown in the photo, the non-disjunction in chromosome 21 produces a trisomy, a type of aneuploidy seen in Down syndrome.

Learn more:

Trisomy brainly.com/question/484286

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skad [1K]

Answer:

25% colorblind daughter: 25% colorblind son: 25% carrier daughters with normal vision: 25% normal son.

Explanation:

The genotype of a color-blind man is X^cY and the genotype of the heterozygous carrier female is X^cX. A cross between X^cY and X^cX would produce a progeny in following ratio=  

25% colorblind daughter: 25% colorblind son: 25% carrier daughters with normal vision: 25% normal son.

Therefore, the couple is likely to have 50% normal son and 50% affected son. Likewise, the couple is likely to have 50% normal daughters and 50% colorblind daughters.  

3 0
3 years ago
Need help on this plz
djyliett [7]

Answer:69

Explanation:

4 0
2 years ago
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Answer:

The correct answer is <u>False</u>

Explanation:

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6 0
2 years ago
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rusak2 [61]
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3 years ago
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