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 351: The correct increasing order of size for the cell components responsible for heredity is Options:
  A) chromosome → DNA → nucleus → gene
  B) DNA → gene → chromosome → nucleus
  C) chromosome → nucleus → DNA → gene
  D) DNA → gene → nucleus → chromosome
  Show Answer
  The correct answer is B .
• Question 352: If an isolated living cell is left in distilled water for two hours, it is likely to Options:
  A) lose some of its water to the surrounding water
  B) lose all of its water to the surrounding water
  C) reproduce by binary fission
  D) become more turgid
  E) die due to excess water
  Show Answer
  The correct answer is D .
• Question 353: In vegetation propagation, which of the following requires part of another plant to develop? Options:
  A) Scion
  B) Bulb
  C) Rhizome
  D) Sucker
  Show Answer
  The correct answer is A .
• Question 354: Which of the following types of feathers is used for flight in birds? Options:
  A) Quill
  B) Filoplume
  C) covert
  D) Down
  Show Answer
  The correct answer is A .
• Question 355: They key event in the transition of the amphibians from water to land is the Options:
  A) replacement of the gills with lungs
  B) possession of webbed limbs
  C) development of long hing limbs
  D) possession of tympanic membrane
  Show Answer
  The correct answer is A .
• Question 356: Which of the following statements is NOT true of menstruation? Options:
  A) It occurs monthly
  B) The discharge contains amniotic fluid
  C) Its signifies no conception
  D) It involves the lining of uterus
  E) It may cause pains
  Show Answer
  The correct answer is B .
• Question 357: The axial skeleton is found in the Options:
  A) skull, ribs, vertebral column and breast bone
  B) skull, humerus,vertebral column and ribs
  C) breastbone, clavicle, ribs and vertebral column
  D) femur, sternum,ulna and skull
  Show Answer
  The correct answer is A .
• Question 358: Which of the following waste products in plants is excreted through the stomata and lenticels? Options:
  A) Carbondioxide
  B) Alkaloids
  C) Tannins
  D) Anthocyanins
  Show Answer
  The correct answer is A .
• Question 359: Pepsin is a digestive enzymes which breaks Options:
  A) Cellulose into glucose molecules
  B) Carbohydrates into simple sugars
  C) Protein into peptones
  D) Fats into glycerol and fatty acid
  E) Sucrose into glucose and fructose
  Show Answer
  The correct answer is C .
• Question 360: If the offspring of a cross between a brown mouse (bb) and a black mouse (BB) are allowed to interbreed, how many different genotypes would result? Options:
  A) 2
  B) 3
  C) 4
  D) 5
  Show Answer
  The correct answer is C .