Biology Exam Past Questions and Answers | JAMB, WAEC and NECO

Biology is the study of life and living things. It can be divided into different areas that look at the structure, function, anatomy, and behavior of organisms.

• Question 101: Which of the following plant hormone is responsible for ripening of fruits? Options:
  A) Gibberellins
  B) Abscisic acid
  C) Ethylene
  D) Cytokinins
  Show Answer
  The correct answer is C .
• Question 102: Urea is produced in the Options:
  A) Liver
  B) Bladder
  C) Spleen
  D) Kidneys
  E) Gall bladder
  Show Answer
  The correct answer is A .
• Question 103:

  I. Stomata --> Spirogyra

  II. Alveoli --> Earthworm

  III. Malpighian tubule -> Mammal

  IV. Contractile vacuole -> Protozoa

  Which of the above structures is correctly matched with the organisms in which it is found?

  Options:
  A) II
  B) I
  C) IV
  D) III
  Show Answer
  The correct answer is C .
• Question 104: In which of the following crosses will all the female offspring be colour blind? Options:
  A) colour blind mother x colour blind father
  B) colour blind mother x normal father
  C) carrier mother x colour blind father
  D) carrier mother x normal father
  Show Answer
  The correct answer is A .
• Question 105: The vitamin which is important in the formation of the retina pigment is Options:
  A) vitamin A
  B) vitamin B
  C) vitamin C
  D) vitamin D
  Show Answer
  The correct answer is A .
• Question 106: The type of asexual reproduction that is common to both Paramecium and protists is Options:
  A) budding
  B) sporulation
  C) fragmentation
  D) fission
  Show Answer
  The correct answer is D .
• Question 107: Epigeal germination can be found in Options:
  A) sorghum
  B) maize
  C) millet
  D) groundnut
  Show Answer
  The correct answer is D .
• Question 108: What is the genetic ratio of a cross between homozygous tall plant and a homozygous dwarf plant? Options:
  A) 0 tall : 4 short
  B) 3 tall : 1 short
  C) 2 short : 2 tall
  D) 1 tall : 1 short
  E) 4 tall : o short
  Show Answer
  The correct answer is E .
• Question 109:

  How many days does it take for incubation of an egg to release chick?

  Options:
  A) 21
  B) 22
  C) 20
  D) 23
  Show Answer
  The correct answer is A .
• Question 110: The hereditary materials of the cell is Options:
  A) the R N A
  B) protein
  C) the D N A
  D) carbohydrate
  Show Answer
  The correct answer is C .