and the
homozygous recessive parent called? How is it useful?
Answer:
When a progeny of F1, is crossed
with the homozygous recessive parent, it is called testcross.
Test cross between pure dominant (A) and
hybrid dominant (B) individuals with recessive parent is shown below
Such a cross is useful to determine the
genotype of an unknown trait, i.e., whether it is heterozygous or homozygous
dominant for the trait.
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