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what is the difference between homozygous and heterozygous? explain with example.

Asked by ABHINAVSINGH 11th March 2013, 5:12 PM
Answered by Expert

Homozygous refers to having identical alleles for a single trait. Heterozygous refers to having two different alleles for a single trait. 

The gene for seed shape in pea plants exists in two forms, one form for round seed shape (R) and the other for wrinkled seed shape (r).

So for seed shape, a homozygous plant would contain the alleles RR or rr whereas heterozygous plant would contain the alleles Rr.

Answered by Expert 12th March 2013, 7:43 AM
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