There are _______ pairs of chromosomes in human.

23

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The traits which express themselves in Ft generation are called _________.

dominant

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The phenotypic ratio between tall and dwarf in F2 generation of monohybrid cross is _________.

3 : 1

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The genetics is the science of __________ and __________.


heredity

,

variations

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The phenotypic ratio in dihybrid cross is __________.

9 : 3 : 3 : 1
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