Question

A cell has 32 chromosomes. It undergoes mitotic division. What will be the chromosome number (N) during metaphase? What would be the DNA content (C) during anaphase?

Answer 1

Chromosome number during metaphase

Number of chromosomes does not change in the S phase.
Given that a cell has 32 chromosomes.
Hence, the number of chromosomes (N) during metaphase = 32

DNA content during anaphase

DNA content inside each chromosome doubles during the S phase of the cell cycle.
Therefore, the DNA content remains doubled until cytokinesis.
Assuming the initial DNA content to be 2C, during S phase it becomes 4C.
Thus, DNA content during anaphase = 4C.



Final answer
Number of chromosomes during metaphase = 32.
DNA content during anaphase = 4C.