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 91: The exchange of genes between homologous chromosomes is called Options:
  A) test cross
  B) back cross
  C) crossing-over
  D) mutation
  Show Answer
  The correct answer is C .
• Question 92:

  Name the blood cells in which nucleus is absent

  Options:
  A) Lymphocytes
  B) Blood Platelets
  C) Monocytes
  D) Eosinophil
  Show Answer
  The correct answer is B .
• Question 93: Gregor Mendel is regarded as the father of ______ Options:
  A) variation
  B) genetics
  C) mycology
  D) natural selection
  Show Answer
  The correct answer is B .
• Question 94: Spirogyra, Euglena and Chlamydomonas share many characteristics EXCEPT Options:
  A) nutrition
  B) reproduction
  C) mobility
  D) irritability
  Show Answer
  The correct answer is C .
• Question 95: The main distinguishing features between the soldier termite and other members of the caste are the Options:
  A) presence of wings, possession of a small head and large thorax
  B) presence of wings, possession of a large thorax and a small head
  C) absence of wings, possession of strong mandibles and a large head
  D) absence of wings,possession of big head and the absence of mandible
  Show Answer
  The correct answer is C .
• Question 96: The older fossil-bearing rocks, in contrast to the more recent ones, are more likely to contain Options:
  A) animal rather than plant remains
  B) invertebrates rather than birds
  C) flowering plants rather than mosses
  D) reptiles rather than fishes
  Show Answer
  The correct answer is A .
• Question 97:

  Which of the following is true in blood transfusion?

  Options:
  A) A person of blood group AB can donate blood only to another person of blood group AB
  B) Persons of blood groups A and B can donate or receive blood from each other
  C) A person of blood group AB can receive blood only from persons of blood group A or B
  D) A person of blood group O can donate only to a person of blood group O
  Show Answer
  The correct answer is A .
• Question 98: The intensity of competition among animals in a given area will increase with Options:
  A) an increase in the frequency of disease outbreaks
  B) an increase in population size
  C) a decrease in immigration rate
  D) an increase in the emigration rate
  Show Answer
  The correct answer is B .
• Question 99: Which of the following forms about 55% of the volume of the blood in man? Options:
  A) leucocytes
  B) platelets
  C) plasma
  D) erythrocytes
  Show Answer
  The correct answer is C .
• Question 100:

  

  The structure labelled 5 is the

  Options:
  A) sweat gland
  B) sebaceous gland
  C) blood vessel
  D) nerve fibre
  Show Answer
  The correct answer is A .