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Monday, 17 August 2026
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Biology Past Questions and Answers

Topic: Heredity

Jamb Biology Questions - Heredity

Question 31:
The homozygous condition HbsHbsresults in sickle cell anaemia whereas HbAHbs has the sickling trait. What is the probability that a couple with the sickling trait will give birth to one normal child?
  • A 1/2
  • B 1/4
  • C 1/8
  • D None
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Question 32:
What combination of character should a prey develop to survive the environment of its predator?
  • A Camouflag, well developed limbs and effective vision
  • B Showy colour, big body and well developed limbs
  • C Camouflage, big body and effective vision
  • D Showy colour, well developed muscles and an acute sense of smell
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Question 33:
The phenotype of an individual can be summed up as the
  • A Totality of the expressed traits
  • B Individual's physical appearance
  • C Individual's entire genetical make-up
  • D Physiological traits of individual
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Question 34:
A sex-linked character cannot be passed on directly from
  • A Father to son
  • B Mother to daughter
  • C Mother to son
  • D Father to daughter
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Question 35:
Fertilization in humans usually takes place in the
  • A Lower part of the uterus
  • B Upper part of the uterus
  • C Lower part of the oviduct
  • D Upper part of the oviduct
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