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.

1,641.

The following are social insects except

A.

wasps

B.

termites

C.

bees

D.

cotton stainer

Correct answer is D

No explanation has been provided for this answer.

1,642.

Which of the following is an adaptation by plants to reduce the rate of water loss in a dry habitat? Possession of

A.

a few sunken stomata on the lower epidermis only

B.

long leaf tendrils

C.

leaves with serrated edges

D.

strong tap root

Correct answer is A

No explanation has been provided for this answer.

1,643.

The genes affecting the same trait and are located at the same position on the homologous chromosomes
are called

A.

autosomes

B.

alleles

C.

loci

D.

chromatids

Correct answer is B

No explanation has been provided for this answer.

1,645.

In humans, sex is determined by

A.

two homologous chromosomes

B.

a dominant gene for maleness present in a male

C.

two similar sex chromosomes in the male and dissimilar in the female

D.

the differences in the nature of the X and Y chromosomes in the male

Correct answer is B

No explanation has been provided for this answer.