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Wednesday, 01 April 2026
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Biology Past Questions and Answers

Biology Questions

Question 1256:
The first four children of a couple were all girls. The probability that the fifth will also be a girl is
  • A 1/5
  • B 1/4
  • C 1/3
  • D 1/2
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Question 1257:
Genetic counselling is important when a marriage is planned between a
  • A Rh- woman and Rh man+
  • B Rh- woman and Rh- man
  • C Rh+ woman and Rh+ man
  • D Rh+ woman and Rh- man
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Question 1258:
What proportion of the offspring of a cross between two heterozygous parents will exhibit the recessive condition phenotypically
  • A 1/4
  • B 1/2
  • C 3/4
  • D 4/4
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Question 1259:
A hormone secreted at IV serves to
  • A Make the body react to emergencies
  • B Lower blood glucose level
  • C Raise the level of calcium ions in the blood
  • D Facilitate the development of facial hairs
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Question 1260:
Ovoviparity is the type of fertilization exhibited by the organism labelled
  • A IV
  • B III
  • C II
  • D I
View Answer & Explanation