Questions
In a monohybrid cross, 120 plants are obtained. The ratio of homozygous and heterozygous will be
a
40 : 80
b
60 : 60
c
20 : 100
d
10 : 110
detailed solution
Correct option is B
Let us consider that a pure tall plant was crossed with a dwarf plant. Then all the F1 progenies will be tall and when these progenies are selfed then we will get genotype in the ratio of 1(TT):2(Tt):1(tt). Therefore, number of homozygous offspring will be 24×120=60 and the number of heterozygous offspring will also be 24×120= 60.Talk to our academic expert!
Similar Questions
A woman with straight hair marries a man with curly hair and, who is known to be heterozygous for the trait. What is the chance that their first child will have curly hair?
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