Multiple Choice
During which phase of mitosis do sister chromatids separate and move toward opposite poles of the cell?
9. Mitosis and Meiosis
Mitosis
Multiple Choice
At the end of interphase, how many chromatids does a human somatic cell contain?
A
92
B
184
C
46
D
23
Verified step by step guidance1
Recall that a human somatic cell is diploid and contains 46 chromosomes in total (23 pairs).
Understand that during interphase, specifically the S phase, DNA replication occurs, so each chromosome is duplicated to form two sister chromatids.
Since each chromosome now consists of two chromatids, multiply the number of chromosomes by 2 to find the total number of chromatids.
Express this mathematically as: \(\text{Number of chromatids} = 46 \times 2\).
Calculate the product to find the total chromatids present at the end of interphase.
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