Botany-Multiple Alleles
NEET Botany Multiple Alleles MCQ Question
Type: MCQ-diagram based-Hard-Class 12
Consider a diagram depicting the ABO blood group system with alleles I^A, I^B, and i. If the diagram shows a cross between an individual with genotype I^A I^B and another with genotype ii, which blood group phenotype would be absent in their offspring?
A
Blood group A
B
Blood group B
C
Blood group AB
D
Blood group O
Correct Answer
Option C
Detailed Explanation
The cross I^A I^B x ii results in offspring with genotypes I^A i (Blood group A) and I^B i (Blood group B). Blood group AB (I^A I^B) cannot appear because it requires both I^A and I^B alleles from the parents, which is impossible with an ii parent.
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