meiosis and variation quiz

quiz to accompany power point, ocr f215 spec, good luck :)

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  • Created by: danni :)
  • Created on: 21-05-13 21:43

1. during metaphase I.....

  • Bivalents line up on equator, attached to spindle fibres by their centromeres
  • Homologous chromosomes join into bivalents.
  • Crossing over occurs (chromatids swap pieces)
  • Centrioles start to move to the poles
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2. during meiosis II spindle fibres form

  • perpendicular to those formed in meiosis I
  • parallel to those formed in meiosis I
  • perpendicular to those formed in telophase II
  • parallel to those formed in anaphase II

3. What prevents a population from freely interbreeding?

  • different courtship behaviour
  • similar mating seasons
  • love
  • human intervention

4. meiosis II forms

  • 4 diploid daughter cells
  • 4 haploid daughter cells
  • 2 haploid daughter cells
  • 2 diploid daughter cells

5. a genotype is

  • an observable characteristic of an organism
  • one of two or more alternative forms of a gene
  • the alleles of a particular gene or genes possessed by an organism
  • the allele that is expressed in a heterozygous organism
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Joshua

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10. They are not attached by their centromeres

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