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 801: In which of the following crosses will all the female offspring be colour blind? Options:
  A) colour blind mother x colour blind father
  B) colour blind mother x normal father
  C) carrier mother x colour blind father
  D) carrier mother x normal father
  Show Answer
  The correct answer is A .
• Question 802: The production of violet colouration, when dilute NaOH solution is added to a solution of food substance, followed by drops of 1% CuSO₄ solution while shaking, indicates the presence of Options:
  A) protein
  B) carbohydrates
  C) fats
  D) reducing
  Show Answer
  The correct answer is A .
• Question 803: One of the following is the unit of life Options:
  A) cell
  B) tissues
  C) organ
  D) system
  Show Answer
  The correct answer is A .
• Question 804: which part of the human brain is concerned with reflexes controlling the rate of heart beat and breathing? Options:
  A) Medulla
  B) Cerebrum
  C) Cerebellum
  D) Pineal body
  E) Olfactory lobe
  Show Answer
  The correct answer is A .
• Question 805: The disaster that would have the least destructive impact on animal life and balance in nature is Options:
  A) chemical pollution
  B) forest fires
  C) oil spillage
  D) grasshopper pests
  Show Answer
  The correct answer is D .
• Question 806:

  What is the tissue responsible for transporting water and minerals from the roots to the rest of the plant?

  Options:
  A) Xylem
  B) Epidermis
  C) Parenchyma
  D) Phloem
  Show Answer
  The correct answer is A .
• Question 807: The part of the human gut that has an acidic content is the Options:
  A) stomach
  B) duodenum
  C) ileum
  D) colon
  Show Answer
  The correct answer is A .
• Question 808: Plants which can survive in places where the water supply is limited are Options:
  A) bryophytes
  B) mesophytes
  C) xerophytes
  D) hydrophytes
  E) pteridophytes
  Show Answer
  The correct answer is C .
• Question 809:

  The body of a snail is divided into head?

  Options:
  A) thorax and abdomen
  B) visceral mass and abdomen
  C) thorax and foot
  D) visceral mass and foot
  Show Answer
  The correct answer is D .
• Question 810:

  

  Which of the labelled parts of the cell contains ribonucleic acid?

  Options:
  A) 1
  B) 2
  C) 3
  D) 5
  Show Answer
  The correct answer is C .