Multiple Choice
During one complete round of mitosis in a single cell, how many times does prophase occur?
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16. Cell Division
Mitosis
Multiple Choice
During mitosis in a human somatic cell, how many chromosomes are in each daughter cell after cytokinesis is complete?
A
0 chromosomes because chromosomes decondense into chromatin
B
92 chromosomes
C
23 chromosomes
D
46 chromosomes
Verified step by step guidance1
Recall that a human somatic cell is diploid, meaning it contains 46 chromosomes (23 pairs) before mitosis begins.
Understand that during mitosis, the chromosomes are duplicated during the S phase, so the cell temporarily has 92 chromatids (46 chromosomes each consisting of two sister chromatids).
During mitosis, sister chromatids separate and are distributed equally to the two daughter cells during anaphase and telophase.
After cytokinesis, each daughter cell receives one complete set of chromosomes, which means each daughter cell has 46 chromosomes, the same number as the original parent cell.
Note that although chromosomes decondense into chromatin after mitosis, the chromosome number refers to the count of distinct DNA molecules, so the number remains 46 in each daughter cell.
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