JAMB Biology Past Questions & Answers - Page 198

986.

Alternation of asexual and sexual modes of reproduction is found in?

A.

blue-green algae

B.

euglena

C.

fern

D.

maize

Correct answer is C

 Ferns use both sexual and asexual reproduction methods. 

987.

In a cell, the genes are carried by?

A.

nuclear membranes

B.

chromatin threads

C.

lysosomes

D.

mitochondria

Correct answer is B

No explanation has been provided for this answer.

988.

A characteristic exhibited by all living organisms is?

A.

sexual reproduction

B.

aerobic respiration

C.

the ability to move from one place to another

D.

the ability to remove unwanted substances

Correct answer is D

No explanation has been provided for this answer.

989.

What is an onion bulb's level of organization?

A.

tissue

B.

organ

C.

systemic

D.

organismal

Correct answer is B

An onion bulb is an example of a plant organ.

990.

Which of the following is a major cause of variation among organisms?

A.

Inbreeding

B.

Backcrossing

C.

Sexual reproduction

D.

Gene dominance

Correct answer is D

No explanation has been provided for this answer.