Which of the following are the key features of meiosis?
i) Meiosis involves two sequential cycles of nuclear and cell division called meiosis – I and meiosis – II.
ii) Meiosis – I is initiated after the parental chromosomes have replicated to produce identical sister chromatids in the S-phase
iii) Meiosis involves pairing of homologous chromosomes and recombination between them.
iv) Four haploid cells are formed at the end of meiosis – II.
v) Two cycle of DNA replication occur

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(ii), (iii), (iv) and (v)

(i), (ii), (iii) and (v)

(i), (iii), (iv) and (v)

(i), (ii), (iii) and (iv)

answer is C.

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Detailed Solution

The key features of meiosis are as follows: l Meiosis involves two sequential cycles of nuclear and cell division called meiosis I and meiosis II but only a single cycle of DNA replication. l Meiosis I is initiated after the parental chromosomes have replicated to produce identical sister chromatids at the S phase. l Meiosis involves pairing of homologous chromosomes and recombination between non-sister chromatids of homologous chromosomes. l Four haploid cells are formed at the end of meiosis II

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