If a heterozygous tall pea plant is self-pollinated, what will be | Filo
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Biology

Heredity and Evolution

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If a heterozygous tall pea plant is self-pollinated, what will be the heterozygous: homozygous proportion of the progenies?

  1. 1:3
  2. 1:1
  3. 3:1
  4. 1:2
Correct Answer: Option(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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