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Question: Answered & Verified by Expert
In the given pedigree, indicate whether the shaded symbols indicate dominant or recessive allele.

BiologyPrinciples of Inheritance and VariationNEET
Options:
  • A dominant
  • B recessive
  • C codominant
  • D it can be both recessive or dominant.
Solution:
1776 Upvotes Verified Answer
The correct answer is: it can be both recessive or dominant.
The pedigree indicates inheritance of an autosomal trait in which the diseases causing allele can be dominat or recessive. For dominant condition sufferer parent is homozygous dominant and other normal parent is homozygous recessive. For recessive condition normal parent is heterozygous and the sufferer parent is homozygous recessive.

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