JAMB Biology Past Questions & Answers - Page 288

1,436.

One reason for the success of Mendel's work is that the

A.

was the first to carry out research work on modern genetics

B.

introduced quantitative and qualitative elements into his work

C.

selected two characteristics only at a time for study

D.

drew up his laws of inheritance based on his knowledge of chromosomes

Correct answer is D

No explanation has been provided for this answer.

1,437.

During binary fission in lower organisms, the nucleus is known to undergo

A.

mitosis

B.

meiosis

C.

fragmentation

D.

mutation

Correct answer is A

No explanation has been provided for this answer.

1,438.

One of the most effective ways of controlling guinea worm is by

A.

treating the disease

B.

public enlightenment campaigns

C.

accelerating rural development

D.

provision of portable drinking water

Correct answer is D

No explanation has been provided for this answer.

1,439.

Which is the most important pollutant of the marine environment in Nigeria?

A.

Insecticides

B.

Sewage

C.

Oil

D.

Inorganic fertilizers

Correct answer is C

No explanation has been provided for this answer.

1,440.

In a soil sample, the relative amouunts of the different soil particles can best be determined by the process of

A.

filtration

B.

centrifugation

C.

precipitation

D.

sedimentation

Correct answer is D

No explanation has been provided for this answer.