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: The chromosome number of a cell before and after the process of meiosis is conventionally represented as Options:
  A) 2n → 2n
  B) n → n
  C) n → 2n
  D) 2n → n
  Show Answer
  The correct answer is D .
• Question 102: Which of the following is a plant excretory product? Options:
  A) Oil
  B) Cytokinin
  C) Resin
  D) Amino acids
  Show Answer
  The correct answer is C .
• Question 103: In which of the following groups of organisms do all the members have asexual method of reproduction? Options:
  A) A geen filament algae, a flowering plant and a bird
  B) A toad (or frog) , ameoba and mucor ( penicillium)
  C) A flowering plant, tape worm (or ascaris) and a green filamentous algae
  D) Mucor (or penicillium), a bird and a toad (or frog)
  E) Ameoba, mucor (or penicillium ) and a green filamentous algae
  Show Answer
  The correct answer is E .
• Question 104:

  The villus in the small intestine is significant because

  Options:
  A) Increases the surface area for absorption
  B) increases the surface area for digestion
  C) assists in mixing digested food
  D) assists in filtering undigested food
  Show Answer
  The correct answer is A .
• Question 105:

  

  The part labelled III is for

  Options:
  A) protection
  B) insulation
  C) lubrication
  D) growth
  Show Answer
  The correct answer is B .
• Question 106: The jointed structure in insects that bears organs which are sensitive to touch, smell and vibration is the Options:
  A) maxilla
  B) labium
  C) antenna
  D) abdomen
  Show Answer
  The correct answer is C .
• Question 107: How many nuclei are found in pollen tube during fertilization? Options:
  A) 2
  B) 3
  C) 5
  D) 6
  E) 7
  Show Answer
  The correct answer is B .
• Question 108: If you cross breed a tall variety (Tt) of maize with a short variety (tt), the ratio of tall to short plants in the offspring will be Options:
  A) 2:1
  B) 1:2
  C) 1:1
  D) 1:3
  E) 3:1
  Show Answer
  The correct answer is C .
• Question 109:

  

  Protein is synthesized in the part labelled

  Options:
  A) I
  B) II
  C) III
  D) Iv
  Show Answer
  The correct answer is A .
• Question 110: The cell of an onion bulb can be differentiated from a cheek cell by the presence of Options:
  A) plasmalemma
  B) chloroplast
  C) cell wall
  D) nucleus
  Show Answer
  The correct answer is C .