JAMB Biology Past Questions & Answers - Page 258

1,286.

Which of the following is likely to encourage inbreeding in plants?

A.

Dioecious

B.

Protandrous

C.

Monoecious

D.

Hermaphrodite

Correct answer is C

No explanation has been provided for this answer.

1,287.

Which of the following statements is true of blood groups and blood transfusion?

A.

Group O is the universal recipient

B.

Group A can donate to group A only

C.

Group AB is the universal recipient

D.

Group B can donate to group B only

Correct answer is C

No explanation has been provided for this answer.

1,288.

The probability of a baby being a boy or a girl depends on the contribution of the

A.

father's sex cell

B.

father's somatic chromosome

C.

mother's sex cell

D.

mother's X-chromosome

Correct answer is A

No explanation has been provided for this answer.

1,289.

Both recessive and dominant characters are found

A.

on different chromosomes in the cell

B.

at the same locus of a homologous chromosome

C.

at different loci of a homologous chromosome

D.

on the same chromatid in a chromosome

Correct answer is B

No explanation has been provided for this answer.

1,290.

The distribution of plants in a rain forest is governed mainly by

A.

vegetation

B.

soil types

C.

amount of sunlight

D.

rainfall pattern

Correct answer is D

No explanation has been provided for this answer.