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.

1,646.

The name given to a sudden change in a gene or chromosome that can be passed on to the offspring is

A.

inheritance

B.

linkage

C.

alleles

D.

mutation

Correct answer is D

No explanation has been provided for this answer.

1,647.

Which of the following is not a morphological variation in human beings?

A.

Size

B.

Blood groups

C.

Colour

D.

Fingerprints

Correct answer is B

No explanation has been provided for this answer.

1,648.

When Mendel crossed round seeds with wrinkled seeds of Pea Plant, what was the ratio of wrinkled seeds to round seeds in the F2 plants?

A.

3 : 1

B.

2 : 1

C.

1 : 3

D.

1 : 2

Correct answer is C

No explanation has been provided for this answer.

1,649.

Which of the following statements about blood groups in human is not correct?

A.

 Siblings may not belong to the same blood group

B.

There are four possible blood groups

C.

People with blood group O can receive blood from all other groups

D.

People with blood group AB are universal recipients

Correct answer is C

No explanation has been provided for this answer.

1,650.

Which of the following is a continuous variation, in human population?

A.

Sex

B.

Rh factor

C.

Height

D.

Down`s syndrome

Correct answer is C

No explanation has been provided for this answer.