Explore topic-wise MCQs in Biology.

This section includes 11 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.

1.

What is the ability of both IA and IB alleles to express together called?

A. Complete dominance
B. Incomplete dominance
C. Codominance
D. Multiple allelism
Answer» D. Multiple allelism
Discussion
2.

What will be the blood group of a person who has IAIB as the genotype?

A. A
B. B
C. AB
D. O
Answer» D. O
Discussion
3.

Which of the following allele is dominant over i?

A. Only IA
B. Only IB
C. Both IA and IB
D. IC
Answer» E.
Discussion
4.

The alleles IA and IB code for the same sugar.

A. True
B. False
Answer» C.
Discussion
5.

The cattle coat color inheritance is an instance of _______

A. complete dominance
B. incomplete dominance
C. codominance
D. multiple allelism
Answer» D. multiple allelism
Discussion
6.

Which allele of I gene does not result in the production of any sugar antigen?

A. IA
B. IB
C. IC
D. i
Answer» E.
Discussion
7.

The I gene which encodes for the blood group is a code for a sugar polymer.

A. True
B. False
Answer» B. False
Discussion
8.

The ABO blood groups are determined by ______ present on RBCs.

A. proteins
B. DNA
C. RNA
D. carbohydrates
Answer» E.
Discussion
9.

ABO blood grouping in humans is an instance of ___________

A. complete dominance
B. incomplete dominance
C. codominance
D. pseudoscience
Answer» D. pseudoscience
Discussion
10.

Which of the following is an instance of codominance?

A. Flower color in garden peas
B. Flower color in snapdragon
C. Blood grouping in humans
D. Pod color in garden peas
Answer» D. Pod color in garden peas
Discussion
11.

In what mode of inheritance, the F1 progeny exhibit characteristics of both the parents?

A. Complete dominance
B. Incomplete dominance
C. Codominance
D. Multiple allelism
Answer» D. Multiple allelism
Discussion