Meiosis

AP Biology· difficulty 3/5

2n parent meiosis I meiosis II 4 haploid

Compared to mitosis, meiosis has

  • A

    Genetically identical daughter cells with the same chromosome number as parent

  • B

    Two rounds of division producing four genetically distinct haploid cells

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  • C

    No DNA replication step before either of the two divisions begins

  • D

    One round of division producing two genetically identical diploid cells

Explanation

Meiosis I separates homologous chromosomes (reductional division; 2n → n). Meiosis II separates sister chromatids. Net result: 4 haploid cells, each with a unique allele combination.

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