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Question

A monohybrid cross between heterozygous tall pea plant and homozygous dwarf pea plant produced F1 generation with genotypic ratio G and phenotypic ratio P. Find G and P

A
G = 2:1, P = 1:1
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B
G = 1:1, P = 1:1
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C
G = 3:1, P = 1:2:1
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D
G = 1:2:1, P = 3:1
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Solution

The correct option is B G = 1:1, P = 1:1
Gametes produced by heterozygous tall pea plant is 'T' and 't'.
Gametes produced by homozygous dwarf pea plant is 't'.
The cross between these two plants will produce F1 generation with genotypes (Tt and tt) in the ratio 1:1. The phenotypes, heterozygous tall and (homozygous dwarf pea plant) will be in the ratio 1:1.

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