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Biology Past Questions and Answers

Jamb Biology Questions

Question 481:
If a woman who is a carrier of sickle cell trait (AS) married a man who is a sickler (SS) and they had four children, how many of them would be normal?
  • A Three
  • B Two
  • C One
  • D None
View Answer & Explanation
Question 482:
Which of the following is an example of discontinuous variation?
  • A Skin colouration
  • B Left handedness
  • C Body weight
  • D Height
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Question 483:
The hormones which regulates the amount of glucose in the blood is called
  • A Adrenalin
  • B Auxin
  • C Insulin
  • D Thyroxine
View Answer & Explanation
Question 484:
An instrument that can be used to demonstrate phototropism and geotropism in plants is the
  • A Auxanometer
  • B Potometer
  • C Klinostat
  • D Photometer
View Answer & Explanation
Question 485:
In an ecosystem, animals which feed directly on plants are called
  • A Secondary consumers
  • B Primary consumers
  • C Producers
  • D Predators
View Answer & Explanation