WAEC Biology Past Questions & Answers - Page 105

522.

A person with blood group B can only donate blood to individuals with blood groups 

A.

A and B

B.

B and AB

C.

O only

D.

B only

Correct answer is B

No explanation has been provided for this answer.

523.

Which of the following is an example of physiological variation?

A.

Blood groups

B.

Skin colour

C.

Finger prints

D.

Human height

Correct answer is A

No explanation has been provided for this answer.

524.

Variation which exhibits a wide range from one extreme to the other with very little difference between the intermediates is described as

A.

phenotypic

B.

discontinuous

C.

continuous

D.

genotypic

Correct answer is C

No explanation has been provided for this answer.

525.

Which of the following statements about mutation is true?

A.

The genotype is not affected

B.

The genotype is affected

C.

The phenotype is not affected

D.

It cannot be induced by artificial means

Correct answer is B

No explanation has been provided for this answer.