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Question

Monohybrid test cross is ___________.

A
1 : 1 : 1 : 1
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B
1 : 1
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C
9 : 3 : 4
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D
9 : 3 : 3 : 1.
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Solution

The correct option is B 1 : 1

A cross is made between hybrid and homozygous recessive individual is called Test cross. It is used to determine, whether it is homozygous or heterozygous and also type of gametes produced during fertilization. In the next generation 50% heterozygous plants and 50% homozygous recessive plants are formed. The phenotypic ratio is 1:1.

So, the correct option is ‘1:1’.
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