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
meiosis...
produces genetically varying haploid cells
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during metaphase I.....
Bivalents line up on equator, attached to spindle fibres by their centromeres
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anaphase I is important in sexual reproduction because:
it halves the number of chromosomes
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plants usually miss
interphase II
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during meiosis II spindle fibres form
perpendicular to those formed in meiosis I
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meiosis II forms
4 haploid daughter cells
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a genotype is
the alleles of a particular gene or genes possessed by an organism
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in discontinuous variation:
Different alleles at a single gene locus have large effects on phenotype
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Polygenic traits
are influenced more by environment e.g., skin colour
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What prevents a population from freely interbreeding?
different courtship behaviour
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genetic drift
is the chance that alleles are passed on
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Other cards in this set

Card 2

Front

during metaphase I.....

Back

Bivalents line up on equator, attached to spindle fibres by their centromeres

Card 3

Front

anaphase I is important in sexual reproduction because:

Back

Preview of the front of card 3

Card 4

Front

plants usually miss

Back

Preview of the front of card 4

Card 5

Front

during meiosis II spindle fibres form

Back

Preview of the front of card 5
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Comments

Joshua

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10. They are not attached by their centromeres

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