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 381: Root hair have their origin from Options:
  A) Endodermis
  B) Pericycle
  C) Cortex
  D) Epidermis
  E) Xylem
  Show Answer
  The correct answer is D .
• Question 382: The stunted growth of a leguminous plant suffering from nitrogen deficiency may be corrected by inoculating the soil with Options:
  A) denitrifying bacteria
  B) Saprophytic bacteria
  C) Rhizobium
  D) Nitrosomonas
  Show Answer
  The correct answer is C .
• Question 383: Genetic counselling is important when a marriage is planned between a Options:
  A) Rh^- woman and Rh ^man+
  B) Rh^- woman and Rh^- man
  C) Rh⁺ woman and Rh⁺ man
  D) Rh⁺ woman and Rh^- man
  Show Answer
  The correct answer is A .
• Question 384: Which of these is not detected by the nerve endings of the skin? Options:
  A) cold
  B) pain
  C) pressure
  D) weakness
  Show Answer
  The correct answer is D .
• Question 385:

  Examples of micronutrients include the following except

  Options:
  A) vitamins A
  B) Vitamin B6
  C) Biotin
  D) carbon
  Show Answer
  The correct answer is D .
• Question 386: The first four children of a couple were all girls. The probability that the fifth will also be a girl is Options:
  A) 1/5
  B) 1/4
  C) 1/3
  D) 1/2
  Show Answer
  The correct answer is D .
• Question 387: Which of the following pairs are the products of sucrose hydrolysis? Options:
  A) Glucose + glucose
  B) Fructose + fructose
  C) Glucose + fructose
  D) Galactose + glucose
  E) Fructose + galactose
  Show Answer
  The correct answer is C .
• Question 388:

  The alternate form of a gene is

  Options:
  A) Alternate type
  B) Dominant character
  C) Recessive character
  D) Allele
  Show Answer
  The correct answer is D .
• Question 389: Fossil records found in sedimentary rocks offer some explanation for the theory of evolution because Options:
  A) the deposit have remains of organisms characteristic of when they were formed
  B) different strata have remains of organisms of the same kind
  C) only organisms with strong parts are fossilized
  D) most animal and plant fossils bear little resemblance to present day living specimens
  Show Answer
  The correct answer is A .
• Question 390:

  Ozone hole refers to

  Options:
  A) hole in ozone layer
  B) decrease in the ozone layer in troposphere
  C) decrease in thickness of ozone layer in stratosphere
  D) increase in the thickness of ozone layer in troposphere
  Show Answer
  The correct answer is C .