Waec Agricultural Science 1999 Past Questions and Answers

Question 36:

• WAEC 1999

The characteristic symptoms of mosaic disease of crops is usually observed on

A. Roots
B. Leaves
C. Stems
D. Fruits

Question 37:

• WAEC 1999

The correct sequence in the processes of crop improvement is

A. Introduction-slection-breeding
B. Breeding-selection-intruduction
C. Breeding-introduction-selection
D. Introduction-breeding-selection

Question 38:

• WAEC 1999

A condition which a gene does manifest observation characteristics in the presence of its dominant allele is known as

A. Dominance
B. Mutation
C. Recessiveness
D. Homozygosity

Question 39:

• WAEC 1999

Gestation period is defined as the time

A. Of fusion of the sperm and the egg
B. Between conception and parturition
C. Of release of ovum from the ovary
D. Of the birth of the young animal

Question 40:

• WAEC 1999

The hormone responsible for milk let down in female farm animals is

A. Testosterone
B. Follicle stimulting hormone
C. Oxytocin
D. Androgen