Reproduction - Jamb Biology Past Questions and Answers

Question 26:

• JAMB 1990

Fruits which develop without fertilization are described as

A. Simple
B. Pathencorpic
C. Aggregate
D. Compound

Question 27:

• JAMB 1991

Vegetation propagation is described as asexual reproduction because

A. Reproductive organs are not involved
B. New individuals are not formed
C. Many new plants are produced
D. There is no exchange of genetic materials

Question 28:

• JAMB 1992

Double fertilization in higher plants is significant because it ensures the

A. Formation of a fertile embryo
B. Formation of a fertile embryo and the endosperm
C. Developement of the seed
D. Developement of the fruit

Question 29:

• JAMB 1992

Fruits which develop without fertilization of the ovule are

A. False
B. Multiple
C. Aggrgate
D. Parthenocarpic

Question 30:

• JAMB 1993

Which of the following is TRUE of the process of conjugation in paramecium?

A. Micronucleus disintegrates
B. Each ex-conjugant divides only once
C. Macronucleus undergoes division
D. Each micronucleus divides twice