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 results in the formation of new phenotypes?

A. Pre-existing helpful mutations
B. Post-existing helpful mutations
C. Pre-existing disadvantageous mutations
D. Post-existing advantageous mutations
Answer» B. Post-existing helpful mutations
2.

Which is the correct statement regarding Founder effect?

A. Named after the scientist John Founder
B. No large change in frequency
C. The old population become founders
D. Formation of new species
Answer» E.
3.

Gene drift occurs when gene migration occurs ______

A. by chance
B. spontaneously
C. slowly
D. due to disaster
Answer» B. spontaneously
4.

The process when some species migrate from the original to a new place, which in turn changes the allele frequency is called ______

A. Gene drift
B. Gene migration
C. Gene travel
D. Genetic recombination
Answer» C. Gene travel
5.

Which of the following does not belong to factors affecting the Hardy Weinberg principle?

A. Gene migration
B. Genetic drift
C. Genetic drop
D. Mutation
Answer» D. Mutation
6.

How many factors affect the Hardy Weinberg principle?

A. Six
B. Four
C. Seven
D. Five
Answer» E.
7.

The difference in frequency indicates the extent of evolutionary change.

A. True
B. False
Answer» B. False
8.

The notation p and q of the Hardy Weinberg equation represent ________ of a diploid organism.

A. frequency of allele p
B. frequency of only allele A
C. frequency of the only allele a
D. frequency of allele A and a
Answer» E.
9.

Which of the following represents the Hardy Weinberg equation?

A. p<sup>2</sup> + q<sup>2</sup> = 1
B. p<sup>2</sup> + 2pq + q<sup>2</sup> = 1
C. p<sup>2</sup> + q<sup>2</sup> = 0
D. (p<sup>2</sup> + q<sup>2</sup>)<sup>2</sup> = 1
Answer» C. p<sup>2</sup> + q<sup>2</sup> = 0
10.

It is known that the total sum of all the frequencies of the allele is _____

A. one
B. two
C. three
D. four
Answer» B. two
11.

Which of the following does not belong to the Hardy Weinberg principle?

A. Frequency remained fixed through generations
B. Used algebraic equations
C. Allele frequency varies from species
D. Gene pool remains a constant
Answer» D. Gene pool remains a constant