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 581: The ratio of carriers to sicklers in the F₁ generation derived from a parental cross of two carriers of haemoglobin S gene is Options:
  A) 3 : 1
  B) 1 : 3
  C) 2 : 1
  D) 1 : 2
  Show Answer
  The correct answer is C .
• Question 582: An example of cryptic colouration is the Options:
  A) Mottled colours on the moths that rest in lichens
  B) bright colour of an insect pollinated flower
  C) Green colour of a plant
  D) Bright marks on poisonous tropical frog on veriegated leaves
  Show Answer
  The correct answer is A .
• Question 583: Viruses are regarded as non-living because they Options:
  A) can niether reproduce asexually nor sexually
  B) cannot survive in their respective enviroments
  C) do not possess characteristics that can be transmitted from one generation to the next
  D) can neither respire nor excrete
  Show Answer
  The correct answer is D .
• Question 584: A characteristic feature of tropical rainforest is that it Options:
  A) Contains trees with narrow leaves
  B) Contains large number of plant species
  C) Contains fewer number of plant species
  D) Has total annual rainfall of less than 50cm
  Show Answer
  The correct answer is B .
• Question 585: The path taken by glucose from the ileum to the heart is Options:
  A) Ileum →hepatic portal vein →hepatic artery → vena cava → heart
  B) Ileum → hepatic portal artery →hepatic artery → vena cava → heart
  C) Ileum → hepatic portal vein → vena cava → heart
  D) Ileum → hepatic vein → vena cava → heart
  E) Ileum → hepatic portal vein → hepatic vein → vena cava → heart
  Show Answer
  The correct answer is E .
• Question 586: A food substance which produces red colouration with Sudan III contain Options:
  A) protein
  B) sugar
  C) starch
  D) cellulose
  E) fat
  Show Answer
  The correct answer is E .
• Question 587:

  The gland that is present close to Trachea

  Options:
  A) Pancreas
  B) Liver
  C) Adrenal
  D) Thyroid
  Show Answer
  The correct answer is D .
• Question 588: A sex-linked character cannot be passed on directly from Options:
  A) father to son
  B) mother to daughter
  C) mother to son
  D) father to daughter
  Show Answer
  The correct answer is A .
• Question 589: The mammalian pancreas is involved with the Options:
  A) digestion of food only
  B) digestion and absorption of food
  C) digestion of food and regulation of blood sugar
  D) digestion of food, production of hormone and the regulation of blood
  E) digestion of food, and the regulation of blood
  Show Answer
  The correct answer is D .
• Question 590:

  

  The type of joint between adjacent bones in the part labelled II is the

  Options:
  A) hinge joint
  B) ball and socket joint
  C) suture joint
  D) sliding joint
  Show Answer
  The correct answer is D .