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NEET2004ZoologyPrinciples of Inheritance and VariationActual

Given below is a pedigree chart of a family with five children. It shows the inheritance of attached ear-lobes as opposed to the free ones. The squares represent the male individuals and circles the female individuals. Which one of the following conclusions drawn is correct?

Options

  1. AThe parents are homozygous recessive.
  2. BThe trait is Y-linked.
  3. CThe parents are homozygous dominant.
  4. DThe parents are heterozygous.

Correct answer

D. The parents are heterozygous.

Step-by-step solution

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