WAEC Biology Past Questions & Answers - Page 142

706.

Which of the following traits may be considered in marriage counseling?

A.

Height

B.

Fingerprints

C.

Rhesus factor

D.

Skin colour

Correct answer is C

No explanation has been provided for this answer.

707.
708.

If a boy has blood type O and his mother has blood type A, what is his father's genotype?

A.

BB

B.

AA

C.

AO

D.

AB

Correct answer is C

No explanation has been provided for this answer.

709.

The gene that is only located on X-choromosome is said to be

A.

expressed in females only

B.

defective

C.

sex-linked

D.

expressed in males only

Correct answer is C

No explanation has been provided for this answer.

710.

When a man who is Rh-positive marries a woman who is Rh-negative, there will be incidence of

A.

still births

B.

sicklers

C.

albinos

D.

living children

Correct answer is A

No explanation has been provided for this answer.