NEET BIOLOGY

CELL STRUCTURES AND FUNCTION

CELL DIVISION

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

A parent cell has 10 chromosomes. If one daughter cells after mitosis has 9 single chromosomes and the other has 9 single chromosomes and 1 double chromosome ____ when did the error occur?

A	prophase
B	metaphase
C	anaphase
D	telophase

Explanation:

Detailed explanation-1: -10 chromosomes each. Mitotic division results in two daughter cells with an identical chromosomal number and genetic content to the parental cell.

Detailed explanation-2: -Hence, answer is ‘10 chromosomes’.

Detailed explanation-3: -Once mitosis is complete, the cell has two groups of 46 chromosomes, each enclosed with their own nuclear membrane. The cell then splits in two by a process called cytokinesis, creating two clones of the original cell, each with 46 monovalent chromosomes.

Detailed explanation-4: -As a result, each end pole of the dividing cell will receive 10 chromatids, with each chromatid becoming a chromosome for the cell. as a result, they will have 10 chromosomes immediately after cytokinesis, each of which is made up of a single chromatid.

There is 1 question to complete.