JAMB Biology Past Questions & Answers - Page 257

1,281.

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.

1,282.

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.

1,283.

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.

1,284.

The hygrometer is used to measure

A.

relative humidity

B.

specific gravity

C.

rainfall

D.

salinity

Correct answer is A

No explanation has been provided for this answer.

1,285.

A freshwater pond may contain

A.

tadpole, water boatman, leeches, and crab

B.

water beetle, shrimps, water snail, and water bug

C.

water lily, fish, water scorpion, and dragon larva

D.

pond skater, water lily, shark, and mosquito larva

Correct answer is C

No explanation has been provided for this answer.