Apentix/AP Biology/Unit 4: Cell Communication and Cell Cycle/Question

AP Biologyeasymcq1 pt

A eukaryotic cell has a haploid number of n = 12. What is the total number of sister chromatids present in a single cell at the end of the S phase?

Explanation

Core Concept

A diploid cell with n = 12 has 2n = 24 chromosomes. After S phase DNA replication, each chromosome consists of two sister chromatids, yielding 24 × 2 = 48 chromatids.

Correct Answer

sphase-3

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