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If two persons with 'AB' blood group mar...

If two persons with 'AB' blood group marry and have sufficiently large number of chil- dren, these children could be classified as 'A' blood group : 'AB' blood group: 'B' blood group in 1 :2:1 ratio. Modern tech- nique of protein electrophoresis reve~ls presence of both 'A' and 'B' type proteins in 'AB' blood group individuals. This is an example of

A

codominance

B

incomplete dominance

C

partial dominance

D

complete dominance

Text Solution

Verified by Experts

The correct Answer is:
A
In codominance both alleles of a pair express themselves fully in `F_(1)` hybrid. It is contrary to the situation seen in incomplete dominance, where traits express themselves only partially. This is not the example of partial dominance or complete dominance
`ABrarrunderset("Genotype")(|.^(A)|^(B))rarr"Antigen A" + "Antigen B "rarr"Codominance"`
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Blood group AB has

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A,AB and B blood groups are formed in 1:2:1 ratio by