In heterozygous condition, individual expression of both alleles in phenotype is exemplified by

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4.Principles of Inheritance and Variation

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In heterozygous condition, the individual expression of both the alleles in the phenotype is exemplified by

A

Colourblindness

B

$AB$ blood group

C

Rh factor

D

$A$ and $B$ blood group

Solution

Blood group-$AB$ has antigen $A$ and $B$ on $RBCs$ but no antibodies in plasma. The alleles $A$ and $B$ are codominant.

Standard 12

Biology

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(AIIMS-1984)