Fundamental Animal Microgenetics Practice Exam

Meiosis involves two nuclear divisions, known as meiosis I and meiosis II, but it only includes one replication of DNA, which occurs during interphase prior to meiosis I. During this replication, the chromosomes are duplicated, resulting in pairs of sister chromatids. The two divisions then separate the homologous chromosomes in meiosis I and the sister chromatids in meiosis II, ultimately leading to the formation of four haploid gametes.

The statement that meiosis involves two replications of DNA is incorrect; therefore, indicating that the answer is false is accurate. This distinction is crucial because understanding the stages of meiosis and the mechanics of genetic variation through these processes is fundamental in genetics and reproductive biology.