Back to PRINCIPLE OF INHERITANCE AND VARIATION

NEET UG BIOLOGY MCQ: PRINCIPLE OF INHERITANCE AND VARIATION

1 Hard

1 of 1

Analyzing +4 | -1

Consider the following statements about the

A B O

blood grouping in human beings and select the incorrect pair from the given options

a. ABO blood groups are controlled by gene I, having three alleles

I^A, I^B

and

i

.

b.

I^A

and

I^B

are completely dominant over i but

I^A

and

I^{\mathrm{B}}

show incomplete dominance when they are present together

c. The alleles

\mathbf{I}^{\mathrm{A}}

and

\mathbf{I}^{\mathrm{B}}

produce almost similar form of sugar but the

\mathrm{i}

allele produce a completely different sugar

d. A total of six different genotypes and four phenotypes are possible

View answer and explanation

Correct option: B

b and c

Option B (b and c) is correct because

I^A

and

I^B

show codominance, not incomplete dominance, and the i allele produces no sugar, not a completely different sugar.

NEET UG BIOLOGY MCQ: PRINCIPLE OF INHERITANCE AND VARIATION

More Questions from PRINCIPLE OF INHERITANCE AND VARIATION