Gamete mother cells with the chromosome const | vedclass

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(D) Non-disjunction is the failure of homologous chromosomes or sister chromatids to separate properly during cell division. In a male with $44+XY$ ch

Vedclass · Accepted Answer

$22+XY, 22+0$ (or $22$)

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(D) Non-disjunction is the failure of homologous chromosomes or sister chromatids to separate properly during cell division. In a male with $44+XY$ chromosomes,the first meiotic division involves the separation of the $X$ and $Y$ chromosomes. If non-disjunction occurs during the first meiotic division,the $XY$ pair fails to separate and moves into one daughter cell,while the other daughter cell receives no sex chromosomes. Consequently,after the second meiotic division,the resulting gametes will have genotypes $22+XY$ and $22+0$ (which is $22$).

Gamete mother cells with the chromosome constitution $44+XY$ suffer from non-disjunction at the first meiotic division. Which of the following sets of gametes would result?

Similar Questions

Choose the correct option:
$(1)$ Meiosis occurs in human germ cells / zygotes.
$(2)$ The process of pairing of homologous chromosomes is called synapsis / desynapsis.

Identify the stage of meiosis shown in the figure.

The longest phase of meiosis $I$ is ......

Which of the following events occurs only during meiosis?

In oocytes of some vertebrates,this stage can last for months or years.

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