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 61: An amoeba and an unlaid chicken egg are Options:
  A) anial tissue
  B) organelles
  C) single cell
  D) organisms
  Show Answer
  The correct answer is C .
• Question 62: If X^N is the dominant allele for normal vision and Xⁿ the recessive allele for colour blindness, a boy with the genotype YXⁿ will be Options:
  A) have normal vision
  B) be colour-blind
  C) be totally blind
  D) be a carrier of colour blindness
  Show Answer
  The correct answer is B .
• Question 63: For growth to occur in organisms, the rate of Options:
  A) food storage must be low
  B) catabolism must exceed that of anabolism
  C) anabolism must exceed that of catabolism
  D) food storage must be high
  Show Answer
  The correct answer is C .
• Question 64: The number of alleles controlling blood groups in humans Options:
  A) 3
  B) 4
  C) 5
  D) 2
  Show Answer
  The correct answer is A .
• Question 65: Which of these is not an enzyme? Options:
  A) Pepsin
  B) Gastrin
  C) Amylase
  D) Chymotrypsin
  E) Trypsin
  Show Answer
  The correct answer is B .
• Question 66: The inheritable characters that are determined by a gene located on the X-chromosome is Options:
  A) recessive
  B) sex-linked
  C) homozygous
  D) dominant
  Show Answer
  The correct answer is B .
• Question 67: Gaseous exchange in the lungs takes place in the Options:
  A) alveoli
  B) bronchi
  C) bronchioles
  D) trachea
  Show Answer
  The correct answer is A .
• Question 68: The first four children of a couple were all girls. The probability that the fifth will also be a girl is Options:
  A) 1/5
  B) 1/4
  C) 1/3
  D) 1/2
  Show Answer
  The correct answer is D .
• Question 69:

  Hydra removes undigested food by

  Options:
  A) passing it through the anus
  B) passing it through the mouth
  C) means of a contractile vacuole
  D) egesting it through the body surface
  Show Answer
  The correct answer is B .
• Question 70:

  Which is an animal without red blood cells?

  Options:
  A) Frog
  B) Earthworm
  C) Snake
  D) Peacock
  Show Answer
  The correct answer is B .