WAEC Agricultural Science Past Questions & Answers - Page 77

381.

Which of the following methods of plant propagation is limited to plants which root easily?

A.

Grafting and cutting

B.

Layering and cutting

C.

Budding and layering

D.

Grafting and layering

Correct answer is B

No explanation has been provided for this answer.

382.

A raw material that could be obtained from the forest is

A.

Margarine

B.

Honey

C.

Mutton

D.

Butter

Correct answer is B

No explanation has been provided for this answer.

383.

A breeding method which involves the production of heterozygous populations from homozygous lines is

A.

Inbreeding

B.

Introduction

C.

Selection

D.

Hybridization

Correct answer is A

No explanation has been provided for this answer.

384.

Imported plants are expected to be

A.

Vaccinated

B.

Improved upon

C.

Treated

D.

Quarantined

Correct answer is D

No explanation has been provided for this answer.

385.

Heat treatment of oil palm seeds before sowing helps to

A.

Mobilize nutrients for the embryo

B.

Harden the mesocarp

C.

Break embryo dormancy

D.

Improve disease resistance

Correct answer is C

No explanation has been provided for this answer.