Scelta multipla
In a typical human somatic cell, how many chromosomes are present at the beginning of mitosis (prophase)?
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16. Cell Division
Mitosis
Scelta multipla
During mitosis in a human somatic cell (2n = 46), how many chromosomes will be present in each daughter cell at the end of cytokinesis?
A
92
B
69
C
23
D
46
Guida verificata passo dopo passo1
Recall that a human somatic cell is diploid with 2n = 46 chromosomes, meaning it has 46 chromosomes arranged in pairs.
Understand that during mitosis, the cell duplicates its chromosomes during the S phase, temporarily having 92 chromatids (46 chromosomes each consisting of two sister chromatids).
During mitosis, these sister chromatids are separated into two sets, ensuring each daughter cell receives one copy of each chromosome.
At the end of cytokinesis, the cell divides into two daughter cells, each receiving a full set of chromosomes.
Therefore, each daughter cell will have the original diploid number of chromosomes, which is 46 chromosomes.
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