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Q.
Observe the pedigree chart given below. Find out the
cause of trait, i.e. it is due to
Principles of Inheritance and Variation
Solution:
For the pedigree chart given in the question, the cause of the trait can either be due to a dominant allele or a recessive allele.
It can be depicted by the two cases given below
I. When ' $A$ ' is the dominant allele for the trait and ' $a$ ' is the normal recessive allele.
II. When ' $a$ ' is the recessive allele for the trait and ' $A$ ' is the normal dominant allele.
