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Q.

Study the following :
A – Incomplete dominance 
B – Codominance
C – ‘ABO’ blood grouping
D – Human skin colour
Inheritance of character is due to a single gene in 

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a

A, B only

b

B, C, D only

c

C, D only

d

A, B, C only

answer is D.

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Detailed Solution

A – Incomplete dominance 
B – Codominance
C – ‘ABO’ blood grouping

In all the above cases, inheritance of a character is due to a single gene but different alleles.(ABO is multiple alleles).

 

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Study the following :A – Incomplete dominance B – CodominanceC – ‘ABO’ blood groupingD – Human skin colourInheritance of character is due to a single gene in