Pedigree chart given below shows a particular trait which is absent in parents but present in next g

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4.Principles of Inheritance and Variation

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The pedigree chart given below shows a particular trait which is absent in parents but present in the next generation irrespective of sexes. Draw your conclusion on the basis of the pedigree.

Option A

Option B

Option C

Option D

Solution

The trait is autosomal recessive trait. Both the parents are carrier (i.e., heterozygous) hence among offspring few show the trait irrespective of sex. The other off springs are either normal or carrier.

Standard 12

Biology

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medium

The pedigree chart given below shows a particular trait which is absent in parents but present in the next generation irrespective of sexes. Draw your conclusion on the basis of the pedigree.

Solution

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