Question

In meiosis, chromosomes replicate during

• A. Prophase I
• B. Prophase II
• C. Telophase I
• D. Interphase

Answer 1

Answer: (D)

Interphase

In meiosis, the chromosomes duplicate (during interphase) and homologous chromosomes exchange genetic information (chromosomal crossover) during the first division, called meiosis I. The daughter cells divide again in meiosis II, splitting up sister chromatids to form haploid gametes. Interphase begins with $G_1$ (G stands for gap) phase. During this phase, the cell makes a variety of proteins that are needed for DNA replication. During S phase, all of the chromosomes are replicated. Following replication, each chromosome now consists of two sister chromatids.
So, the correct option is D.