WAEC Biology Past Questions & Answers - Page 67

331.

Which of the following statements is true about mutation?

A.

Phenotype is not involved

B.

Genotype is not involved

C.

Artificial induction is not possible

D.

Genotype is involved

Correct answer is D

No explanation has been provided for this answer.

333.

An apple plant can produce sexually and asexually and it has 40 chromosomes in its leaf cells. How many chromosomes would be in each gamete and somatic cell?

A.

20 chromosomes in the gametes and 10 in the somatic cells

B.

40 chromosomes in the gametes and 20 in the somatic cells

C.

20 chromosomes in the gametes and 40 in the somatic cells

D.

40 chromosomes in the gametes and 40 in the somatic cells

Correct answer is C

No explanation has been provided for this answer.

334.

Which of the following characters is not a morphological variation?

A.

shape of the nose

B.

skin colour

C.

Hair colour

D.

tongue rolling

Correct answer is D

No explanation has been provided for this answer.

335.

The type of variation illustrated above is

A.

continuous variation

B.

discontinuous variation

C.

morphological variation

D.

environmental variation

Correct answer is B

No explanation has been provided for this answer.