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 111:

  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 .
• Question 112:

  Which of the following is not a problem of forest management?

  Options:
  A) absence of adequate information on the ecosystem
  B) inadequate support from government for the development of forest resources
  C) planting different varieties of timber
  D) indiscriminate destruction of forest resources by bush fire
  Show Answer
  The correct answer is C .
• Question 113:

  When a cockerel is castrated, it becomes a

  Options:
  A) broiler
  B) cock
  C) layer
  D) capon
  Show Answer
  The correct answer is D .
• Question 114:

  Reduction of ten seedlings of maize to two per stand is referred to as

  Options:
  A) Thinning
  B) Spacing
  C) Weeding
  D) Pruning
  Show Answer
  The correct answer is A .
• Question 115:

  An advantage of extensive system of rearing goats is

  Options:
  A) low labour requirement
  B) easy control of disease
  C) indiscriminate mating
  D) exposure to adverse weather conditions
  Show Answer
  The correct answer is A .
• Question 116: If T represents the gene for tallness while t represents dwarfness. When a tall (TT) crop is crossed with a dwarf (tt) crop, the resultant crop will be Options:
  A) 100% dwarf
  B) 100% tall
  C) 50% tall and 50% dwarf
  D) 75% tall and 25% dwarf
  Show Answer
  The correct answer is B .
• Question 117:

  The alternate heating and cooling of rocks result in

  Options:
  A) sublimation
  B) volatilization
  C) solidification
  D) fragmentation
  Show Answer
  The correct answer is D .
• Question 118: The correct sequence of feed utilization in farm animals is Options:
  A) digestion-ingestion-absorption-assimilation
  B) ingestion-digestion-assimilation-absorption
  C) ingestion-digestion-assimilation
  D) digestion-assimilation-ingestion-absorption
  Show Answer
  The correct answer is C .
• Question 119:

  The most common soil mineral found in all crystalline rocks and a main constituent of granite and sandstone is

  Options:
  A) biotite
  B) quartz
  C) mica
  D) granite
  Show Answer
  The correct answer is B .
• Question 120:

  Which of the following is not the role of government in agricultural production?

  Options:
  A) provision of loans and credits
  B) building of storage facilities
  C) establishment of efficient marketing outlets
  D) provision of labour
  Show Answer
  The correct answer is D .