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 741: If a woman's genotype is Tt Qq Rr, what would be the gene content of her eggs? Options:
  A) TQr, tqr
  B) TQR, tqr
  C) TqR, tQr
  D) tQr, TQR
  Show Answer
  The correct answer is B .
• Question 742:

  The two key cations involved in the action potential of nervous transmissions are?

  Options:
  A) Na+ and Fe2+
  B) Mg2+ and K+
  C) Na+ and K+
  D) Fe2+ and Mg2+
  Show Answer
  The correct answer is C .
• Question 743: The matured sex cell which takes part in sexual reproduction is referred to as Options:
  A) gamete
  B) fetus
  C) embryo
  D) zygote
  Show Answer
  The correct answer is A .
• Question 744: ONE of the major causes of haemophilia is lack of Options:
  A) firbrinogen
  B) amylase
  C) white blood corpuscles
  D) red blood corpuscles
  E) plasma
  Show Answer
  The correct answer is A .
• Question 745: The correct sequence of the movement of urea during urine formation is Options:
  A) glomerulus → Bowman's capsule→ Convoluted tubules → Henle's loop → collection tube
  B) glomerulus → Bowman''s capsule→ Convoluted tubules → Henle's loop → convoluted tubule→ collecting tubule
  C) convoluted tubules → glomerulus → Henle's loop→ Bowman's capsule →collecting tubules
  D) convoluted tubule → Bowman's capsule → Henle's loop →glomerulus → collecting tubule
  Show Answer
  The correct answer is A .
• Question 746:

  The attachment of the embryo to the wall of the uterus is called

  Options:
  A) Ovulation
  B) Implantation
  C) Gametogenesis
  D) Placentation
  Show Answer
  The correct answer is B .
• Question 747: 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 748: A biotic factor which affects the distribution and abundance of organisms in a terrestrial habitat is Options:
  A) temperature
  B) competition
  C) pH
  D) light
  Show Answer
  The correct answer is B .
• Question 749: Wind pollinated flowers usually have Options:
  A) rough pollen grains
  B) sticky stigmas
  C) small and short stigmas
  D) long styles
  Show Answer
  The correct answer is D .
• Question 750: The part of the mammalian brain responsible for maintaining balance is Options:
  A) Medulla oblongata
  B) Cerebellum
  C) Optic lobe
  D) Cerebrum
  E) Olfactory lobe
  Show Answer
  The correct answer is B .