Prophase II: Meiosis Resembles Mitosis — NEET Biology
📚 Practice ConceptProphase II: Meiosis II is initiated immediately after cytokinesis, usually before the chromosomes have fully elongated. In contrast to meiosis I, meiosis II resembles a normal mitosis. The nuclear membrane disappears by the end of prophase II. The chromosomes again become compact.
Which of the following statements regarding the role and implications of Meiosis II are NOT correct? S1: If a cell skips Meiosis II, the two cells formed after Meiosis I will each contain a haploid number of chromosomes, but each chromosome will still consist of two sister chromatids. S2: Skipping Meiosis II would result in the formation of two diploid gametes, thereby maintaining the diploid chromosome number across generations. S3: The primary purpose of Meiosis II is to separate homologous chromosomes, leading to the reduction of chromosome number. S4: Nondisjunction of sister chromatids during Anaphase II would lead to gametes with abnormal chromosome numbers. S5: Genetic recombination is crucial for increasing genetic variability and occurs primarily during the pachytene stage of Meiosis I. S6: In the absence of Meiosis II, the DNA content of the resulting cells would be 1C, similar to normal haploid gametes.
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