Question

Regarding Meiosis, which of the statement(s) is incorrect?

• A. There are two stages in Meiosis, Meiosis-I and II
• B. DNA replication occurs in S phase of Meiosis-II
• C. Pairing of homologous chromosomes and recombination occurs in Meiosis-I
• D. Four haploid cells are formed at the end of Meiosis-II

Answer 1

The Correct Option is B

Step 1: Understanding the Concept:
Meiosis is a reductional division consisting of two sequential cycles of nuclear and cell division but only a single cycle of DNA replication.
Detailed Explanation:
- Statement (1): Correct. Meiosis involves Meiosis-I and Meiosis-II.
- Statement (2): Incorrect. DNA replication occurs only once, during the S phase of interphase before Meiosis-I. There is no DNA replication between Meiosis-I and Meiosis-II (interkinesis).
- Statement (3): Correct. Synapsis and crossing over occur during Prophase-I of Meiosis-I.
- Statement (4): Correct. One diploid cell produces four genetically distinct haploid daughter cells.
Step 2: Final Answer:
Statement (2) is incorrect.