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Question

How many possible genotypes are there for ABO blood groups in man?

A
Three
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B
Four
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C
Six
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D
Eight
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Solution

The correct option is B Six
Genotype Blood types
IAIO or IAIA
A blood type
IAIB AB blood type
IBIO or IBIB
B blood type
IOIO O blood type
There are six possible genotypes for the ABO blood groups in human.
The chart here shows the different genotypes, that make up the blood groups.
Therefore, the correct answer is option C.

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