Multiple Choice
Which of the following life cycles uses meiosis after fertilization?
17. Meiosis and Sexual Reproduction
Meiosis
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Fill in the blanks. In anaphase I the _____________ separate, while in anaphase II the ____________ separate.
A
Sister chromatids, homologous chromosomes
B
Homologous chromosomes, sister chromatids
C
Homologous chromosomes, Homologous chromosomes
D
sister chromatids, sister chromatids
Verified step by step guidance1
Understand the context of meiosis, which consists of two stages: Meiosis I and Meiosis II.
In Meiosis I, specifically during anaphase I, homologous chromosomes are separated. This is a key feature of the reductional division, where the chromosome number is halved.
In Meiosis II, during anaphase II, sister chromatids are separated. This stage is similar to mitosis and is known as the equational division.
Recall that homologous chromosomes are pairs of chromosomes, one from each parent, that are similar in shape, size, and genetic content.
Sister chromatids are identical copies of a single chromosome that are connected by a centromere, formed during DNA replication.
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