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Cell Division, Cell Diversity and Cellular Organisation

Meiosis

  • 3 things to know
  • Components 01, 02 and 03

Overview

How meiosis halves the chromosome number, the independent assortment and crossing over that generate variation, and the stages of meiosis I and meiosis II in order.

What you need to know

Answer each one before you reveal it.

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Process

How does meiosis produce four genetically different haploid cells?

Key term

What occurs during prophase 1 of meiosis?

Key term

What is separated during meiosis I?

Questions from this subtopic

Each one with the model answer underneath.

  1. 1

    What type of cells does meiosis produce from diploid cells?

    Model answer

    Haploid cells.

  2. 2

    How does independent assortment during meiosis generate genetic variation?

    Model answer

    Homologous chromosomes are randomly distributed to daughter cells, creating different combinations of maternal and paternal chromosomes.

  3. 3

    How does crossing over during meiosis generate genetic variation?

    Model answer

    Sections of chromatids are exchanged between homologous chromosomes, creating new combinations of alleles.

  4. 4

    Define homologous chromosomes.

    Model answer

    Pairs of chromosomes with the same genes at the same loci but potentially different alleles.

  5. 5

    What is separated during meiosis I?

    Model answer

    Homologous chromosomes are separated.

  6. 6

    What is separated during meiosis II?

    Model answer

    Sister chromatids are separated.

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