Class 10 Science Biology Heredity and Evolution
501
150 If a heterozygous tall pea plant is self-pollinated, what will be the heterozygous: homozygous proportion of the progenies?
(a)
1:3
(b)
1:1
(c)
3:1
(d)
1:2
Correct answer: (b)
Solution: Considering a heterozygous parent with T and t alleles is self-pollinated, we get two set of heterozygous progeny and two homozygous progeny.
Homozygous TT, tt =2
Heterozygous Tt = 2
Ratio Heterozygous: Homozygous = 2:2 = 1:1
So the ratio between them is 1:1
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components of food
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microorganisms: friend and foe
why do we fall ill?
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