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  4. Genotypic ratio of a monohybrid cross is

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Q. Genotypic ratio of a monohybrid cross is

UP CPMTUP CPMT 2007

Solution:

A monohybrid cross is made to study inheritance of a single pair (contrasting ) of Mendelian factors or genes. It can be represented as -
image
Genotypic monohybrid ratio is obtained through selfing or inbreeding of $F_1$ individuals and it is 1 : 2 : 1 (Pure dominant hybrid: dominant: recessive).