Question

Choose the correct answer from each of the four options given below:

After mitotic cell division, a female human cell will have:

• A. 44+XX chromosome
• B. 44+XY chromosome
• C. 22+X chromosome
• D. 22+Y chromosome

Answer 1

The correct option is A

44+XX chromosome

The correct option is A:

Explanation for the correct option:

1. Mitosis is a type of cell division in which one cell divides into two daughter cells that are identical and has a same number of chromosome as that of the parent cell. It results in equational division.
2. There are 23 pairs or 46 chromosomes present in a human cell, out of which 22 pairs are autosomes and XX pair is allosome in females.
3. Therefore after a mitotic cell division the chromosome present in the human cell will be 44+XX chromosomes.

Explanation for incorrect options:

Option B:

1. In the human male cell, there are 44+XY chromosomes.
2. 22 pairs are autosomes while XY pair is allosome.
3. This Y chromosome decides the gender of the offspring.

Option C:

1. 22+X is the condition that appears after the meiotic cell division.

Option D:

1. Y chromosome can never be present in the female.

After mitotic cell division, a female human cell will have 44+XX chromosomes.