JAMB Biology Past Questions & Answers - Page 156

776.

One of the advantages of outbreeding is

A.

pests tolerance

B.

disease resistance

C.

fast growth

D.

height

Correct answer is B

No explanation has been provided for this answer.

777.

A biological agent with antiviral properties is

A.

Interferon

B.

enzyme

C.

antibiotic

D.

disinfectant

Correct answer is A

No explanation has been provided for this answer.

778.

A couple has 10 children, all female. Which of the following best explains the situation?

A.

The sex determination was by the man's X chromosome

B.

The man's sperm count is low

C.

The woman is not capable of producing male children

D.

The sex determination was by the man's Y chromosome

Correct answer is A

No explanation has been provided for this answer.

779.

Whorls, arches, loops, and compounds are types of variation in

A.

Colour

B.

Finger prints

C.

Hair Colour

D.

Blood group

Correct answer is B

No explanation has been provided for this answer.

780.

When the adults have reached a certain degree of weakness, the process of binary fission is replaced by conjugation in

A.

Paramecium

B.

Euglena

C.

Amoeba

D.

Plasmodium

Correct answer is A

No explanation has been provided for this answer.