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 1951:

  Vaccination is carried out in order to

  Options:
  A) check the production of poison
  B) increase the activities of white blood cells
  C) increase the number of red blood cells
  D) stimulate the production of anti-bodies
  Show Answer
  The correct answer is D .
• Question 1952: The maize grain is regarded as a fruit and not a seed because Options:
  A) it has a coleorhiza
  B) it has a coleoptile
  C) of the relatively large endosperm
  D) there is the remain of a style
  E) of the relatively small scutellum
  Show Answer
  The correct answer is D .
• Question 1953: A circulatory system is very essential in mammals but not in smaller organisms like Amoeba because Options:
  A) Amoeba lives in freshwater
  B) Diffusion is sufficient to transport materials in Amoeba
  C) Amoeba lacks blood containing haemoglobin
  D) Amoeba exibits anaerobic respiration
  Show Answer
  The correct answer is B .
• Question 1954: A mammal with red fur and long ears was crossed with another having white fur and short ears. If the offspring had a red fur and short ears, the Options:
  A) character are linked
  B) character are not linked
  C) parents are related
  D) parents are not related
  Show Answer
  The correct answer is A .
• Question 1955: The theory of survival of the fittest was propounded by Options:
  A) Darwin
  B) Lamarck
  C) Linnaeus
  D) Mendel
  Show Answer
  The correct answer is A .
• Question 1956: A married couple has 10 children and they are all girls. Which of the following is the CORRECT explanation? Options:
  A) The woman is incapable of producing male children
  B) The man’s sperms are very weak
  C) The man is not athletic enough
  D) The Y component of the men’s sex chromosomes was always involved
  E) The X component of the man’s sex chromosomes was always involved
  Show Answer
  The correct answer is E .
• Question 1957: Which of the following is an example of discontinuous variation? Options:
  A) skin colouration
  B) left handedness
  C) body weight
  D) Height
  Show Answer
  The correct answer is B .
• Question 1958: when protein are broken down they also provide Options:
  A) oxygen
  B) carbonhydrate
  C) energy
  D) amino-acid
  E) carbon dioxide
  Show Answer
  The correct answer is D .
• Question 1959: The basic point of impact by changes which produce mutation is the Options:
  A) gametes
  B) chromosomes
  C) phenotype
  D) zygote
  Show Answer
  The correct answer is B .
• Question 1960:

  

  Use the diagram above to answer this question.

  If the dogs are offspring of a monohybrid cross and the gene G for grey head is dominant cross over its allele g, the individual whose genotype is likely to be gg is

  Options:
  A) ll
  B) l
  C) IV
  D) lll
  Show Answer
  The correct answer is B .