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Biology Past Questions and Answers

Jamb Biology Questions

Question 361:
Blood clotting is initiated by
  • A Leucocytes
  • B Platelets
  • C Haemolymph
  • D Haemoglobin
  • E Erythrocytes
View Answer & Explanation
Question 362:
Pepsin is a digestive enzymes which breaks
  • A Cellulose into glucose molecules
  • B Carbohydrates into simple sugars
  • C Protein into peptones
  • D Fats into glycerol and fatty acid
  • E Sucrose into glucose and fructose
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Question 363:
Anaerobic respiration in yeast produces
  • A Carbondioxide and ethanol
  • B Carbondioxide and water
  • C Carbondioxide and oxygen
  • D Carbondioxide and glucose
  • E Ethanol and water
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Question 364:
Underground stems which grow horizontally through the soil are
  • A Bulbs
  • B Rhizomes
  • C Runners
  • D Corms
  • E Stolons
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Question 365:
A man with normal haemoglobin (AA) marries a woman who has sickle-cell haemoglobin (SS). They have a child who has a sickle-cell trait. Which of the following genotypes could be associated with the child’s haemoglobin?
  • A AA
  • B OO
  • C AO
  • D AS
  • E SS
View Answer & Explanation