MCAT Biology Question 24: Answer and Explanation
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Question: 24
9. What is the last point in the meiotic cycle in which the cell has a diploid number of chromosomes?
- A. During interphase
- B. During telophase I
- C. During interkinesis
- D. During telophase II
Correct Answer: B
Explanation:
The first meiotic division (reductional division) separates homologous chromosomes to opposite poles of the cell during anaphase I. Near the end of telophase I, cytokinesis occurs, resulting in two haploid (n) daughter cells. Thus, during interkinesis and anaphase II, the daughter cells are already haploid, eliminating choices (C) and (D). The cell is diploid during interphase, choice (A), but remains diploid up until the end of telophase I.