Questions
What will be the distribution of phenotypic features in the first filial generation after a cross between a homozygous recessive female and a heterozygous for a single locus?
a
3 : 1
b
1 : 2 : 1
c
1 : 1
d
9 : 1
detailed solution
Correct option is C
When a cross is performed between a homozygous recessive female and a heterozygous for a single locus then the F1 generation will have phenotypic ratio 1:1. This is a typical example of a test cross.Talk to our academic expert!
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A cross between a homozygous recessive and a heterozygous plant is called
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