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 261:

  

  Protein is synthesized in the part labelled

  Options:
  A) I
  B) II
  C) III
  D) Iv
  Show Answer
  The correct answer is A .
• Question 262: The flowering period of plants in a habitat is determined by the Options:
  A) duration of sunlight
  B) intensity and duration of rainfall
  C) relative humidity of the atmosphere
  D) temperature of the habitat
  Show Answer
  The correct answer is A .
• Question 263: The lime water in container C turned milky because Options:
  A) Carbon dioxide was produced by plant during respiration
  B) Carbon dioxide entered through the filter pump
  C) Oxygen reacts with lime water to produce milkiness
  D) Soda lime did not remove carbon dioxide from the air
  E) The delivery tubes were not well connected
  Show Answer
  The correct answer is A .
• Question 264: The cell component that is present in a prokaryotic cell is the Options:
  A) Chloroplast
  B) Ribosome
  C) Mitochondrion
  D) Nuclear envelope
  Show Answer
  The correct answer is B .
• Question 265: When oil is poured into the breeding site of mosquitoes, it Options:
  A) deprives the larvae of water
  B) kills the adults
  C) suffocates the pupae
  D) slows doen egg development
  Show Answer
  The correct answer is C .
• Question 266: The addition of lime to clayed soil serves to Options:
  A) aid water retention
  B) close up the texture
  C) prevent water logging
  D) improve capillary action
  Show Answer
  The correct answer is D .
• Question 267: If the pair of alleles for baldness is given as Bb, a female carrier will be denoted by Options:
  A) X^bY^B
  B) X^BX^B
  C) X^BY
  D) X^BbX^b
  Show Answer
  The correct answer is D .
• Question 268: Spirogyra and mucor can be grouped together as Thallophyta because Options:
  A) They are unicellular organisms
  B) Their spores could be dispersed by wind
  C) They are capable of living independent lives
  D) They reproduce sexually only
  E) Their bodies are made up of thallus and filaments alternatively
  Show Answer
  The correct answer is E .
• Question 269: The ability of an organism to live successfully in an environment is known as Options:
  A) resistance
  B) competetion
  C) succession
  D) adaptation
  Show Answer
  The correct answer is D .
• Question 270:

  Which of the following eye defects is caused by the inability of the eye to focus light on the retina?

  Options:
  A) Glaucoma
  B) Myopia
  C) Cataracts
  D) Astigmatism
  Show Answer
  The correct answer is B .