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 1481: In the gene locus for eye colour in humans, the allele for brown eye is dominant over the allele for blue eyes. If a homozygous brown-eyed girl has a brother with blue eyes, what are the likely phenotypes of there parents'eye colour (Eye colour is not a sex linked trait) Options:
  A) Both parents have blue eyes
  B) Their father has blue eyes and their mother has brown eyes
  C) both parents have brown eyes
  D) Their mother has the blue eyes and their father has the brown eyes
  Show Answer
  The correct answer is C .
• Question 1482:

  

  Use the diagram to answer the question that follows.

  The dentition is found in

  Options:
  A) rat
  B) dog
  C) sheep
  D) man
  Show Answer
  The correct answer is D .
• Question 1483:

  Which of the blood corpusles are irregular and amoeloid in shape

  Options:
  A) Leucocytes
  B) Erythrocytes
  C) Thrombocytes
  D) Plasma
  Show Answer
  The correct answer is A .
• Question 1484: A carbohydrate molecule in the blood in the right ventricles of the heart is pumped into the cell of the toe of a man. Which of these structure is it unlikely to pass through en-route Options:
  A) pulmonary artery
  B) lungs
  C) Heart
  D) liver
  E) aorta
  Show Answer
  The correct answer is D .
• Question 1485: The organelle involved in tissue respiration is the Options:
  A) endoplasmic reticulum
  B) ribosome
  C) golgi body
  D) mitochondrion
  Show Answer
  The correct answer is D .
• Question 1486: If a healthy potted plant is continuously kept in dim light Options:
  A) the rate of respiration may equal that of photosynthesis
  B) more carbondioxide and water are taken in
  C) respiration may be halted
  D) the volume of oxygen released increase
  Show Answer
  The correct answer is A .
• Question 1487:

  

  The organism above is

  Options:
  A) chlamydomonas
  B) algae
  C) volvox
  D) euglena
  Show Answer
  The correct answer is C .
• Question 1488: The sensory cell that responds to dim light is referred to as the Options:
  A) cone
  B) lens
  C) rod
  D) iris
  Show Answer
  The correct answer is C .
• Question 1489: From his study of Galapagos finches, Darwin derived his theory of evolution from Options:
  A) comparative anatomy
  B) comparative physiology
  C) fossil remains
  D) comparative embryology
  Show Answer
  The correct answer is B .
• Question 1490:

  For growth to occur in organisms, the rate of

  Options:
  A) anabolism must exceed that of catabolism
  B) catabolism must exceed that of anabolism
  C) food storage must be low
  D) food storage must be high
  Show Answer
  The correct answer is A .