Biology questions and answers

Biology Questions and Answers

How well do you understand living things and their vital processes? Whether you are preparing for JAMB, WAEC, NECO and Post-UTME, these Biology past questions and answers cover such subjects as the chemistry of life, botany, evolution, genetics, ecology etc to help you know what to expect, improve your speed and confidence and be really prepared for the actual aptitude test.

2,656.

The wings of bats and birds, the flippers of whale and the fins of fish are examples of

A.

adaptive radiation

B.

vestigial organs

C.

continuous variation

D.

convergent evolution

E.

 divergent evolution

Correct answer is E

No explanation has been provided for this answer.

2,657.

Cross-breeding is a way of

A.

developing superior varieties of plants only

B.

developing superior varieties of animals only

C.

developing disease-resistant varieties only

D.

encouraging random reproduction in agriculture

E.

applying the principles of heredity in agriculture

Correct answer is E

No explanation has been provided for this answer.

2,658.

Which of the following statements is not true about chromosomes?

A.

Each chromosome is made up of two chromatids

B.

Body cells have diploid numbers of chromosomes

C.

Homologous chromosomes do not occur in pairs naturally

D.

The sex cells have haploid number of chromosomes

E.

Chromosomes have many transverse bands

Correct answer is C

No explanation has been provided for this answer.

2,660.

Which of these is not a hereditary variation?

A.

Infant paralysis

B.

Blood group

C.

Sickle cell

D.

Nose and face shape

E.

Hair colour

Correct answer is A

No explanation has been provided for this answer.