Agricultural-Science Exam Past Questions and Answers | JAMB, WAEC and NECO

Agricultural science studies farming practices, including soil cultivation for growing crops and raising animals for food, wool, and other products.

• Question 71:

  A condition in which a gene does not manifest observable characteristics in the presence of its dominant allele is known as

  Options:
  A) dominance
  B) mutation
  C) recessiveness
  D) homozygosity
  Show Answer
  The correct answer is C .
• Question 72:

  What is the primary goal of crop improvement in agriculture?

  Options:
  A) Reducing pest and disease resistance
  B) Expanding crop cultivation areas
  C) Increasing crop diversity
  D) Enhancing crop yield and quality
  Show Answer
  The correct answer is D .
• Question 73:

  A good silage should be free of

  Options:
  A) moulds
  B) nutrients
  C) moisture
  D) fibre
  Show Answer
  The correct answer is A .
• Question 74: Which of the following crops has a fibrous root system? Options:
  A) cotton
  B) coffee
  C) cowpea
  D) sugarcane
  Show Answer
  The correct answer is D .
• Question 75:

  Given a normal situation, what effect will an increase in the supply of cowpea have on its market price? The price

  Options:
  A) increases
  B) decreases
  C) is unaffected
  D) is unpredictable
  Show Answer
  The correct answer is B .
• Question 76:

  Which of the following is an example of a biotic factor in an agricultural ecosystem?

  Options:
  A) Rainfall
  B) Soil pH
  C) Temperature
  D) Crop pests
  Show Answer
  The correct answer is D .
• Question 77:

  In farm animals, gonads are organs associated with

  Options:
  A) circulation
  B) excretion
  C) respiration
  D) reproduction.
  Show Answer
  The correct answer is D .
• Question 78:

  Bulldozer is used for the following purpose except

  Options:
  A) bush clearing
  B) felling trees and stumps
  C) leveling the ground
  D) planting of trees
  Show Answer
  The correct answer is D .
• Question 79:

  Which one of these is not a factor that affect change in supply of agricultural produce?

  Options:
  A) Technology
  B) Changes in the cost of production
  C) Changes in prices of commodity
  D) Fixed cost
  Show Answer
  The correct answer is D .
• Question 80:

  The Mendelian law of segregation states that the characteristics which is hidden in an F1, reappears in F2 generation in a ratio

  Options:
  A) 1 : 2
  B) 2 : 2
  C) 1 : 3
  D) 3 : 2
  Show Answer
  The correct answer is C .