Biology Class Test

This test covers the whole syllabus of CBSE Class XII Biology.

15 Questions Published

Questions

Question 1 Multiple Choice (Single Answer)

Which of these refers to the mode of cross pollination performed by birds?

  1. Entomophily
  2. Ornithophily
  3. Chiropterophily
  4. Malacophily
  5. Anemophily
Question 2 Multiple Choice (Single Answer)

Which of these is an autoimmune disease?

  1. AIDS
  2. Tetanus
  3. Ring Worm
  4. Rheumatoid Arthritis
  5. Amoebic Dysentry
Question 3 Multiple Choice (Single Answer)

Which of these is a method of ex situ conservation?

  1. Zoological Park
  2. National Park
  3. Wildlife Sanctuary
  4. Biosphere Reserve
  5. Sacred Grove
Question 4 Multiple Choice (Single Answer)

Who proposed the mutation theory of evolution?

  1. Lamarck
  2. Charles Darwin
  3. Hugo de Vries
  4. August Weismann
  5. Aristotle
Question 5 Multiple Choice (Single Answer)

Which of the following improved traits is observed in golden rice?

  1. Higher protein content
  2. Enriched vitamin A content
  3. Insect resistance
  4. Increased shelf life
  5. Herbicide resistance
Question 6 Multiple Choice (Single Answer)

Which of the following phenomena refers to the development of a fully formed individual directly from an unfertilised ovum?

  1. Spermatogenesis
  2. Oogenesis
  3. Parthenogenesis
  4. Organogenesis
  5. Gametogenesis
Question 7 Multiple Choice (Single Answer)

Which of these acts as a start codon for the protein synthesis?

  1. AUG
  2. UAG
  3. UGA
  4. GUA
  5. AAG
Question 8 Multiple Choice (Single Answer)

Which of the following is not a greenhouse gas?

  1. Carbon dioxide
  2. Methane
  3. Water vapour
  4. Oxygen
  5. Nitrous oxide
Question 9 Multiple Choice (Single Answer)

What do we call the process of synthesis of double stranded DNA from single stranded RNA?

  1. Transcription
  2. Reverse Transcription
  3. Translation
  4. Translocation
  5. Transformation
Question 10 Multiple Choice (Single Answer)

Which international convention was held with the objective of conservation of biological diversity?

  1. Montreal Protocol
  2. Kyoto Protocol
  3. Earth Summit
  4. World Summit
  5. Beijing Protocol
Question 11 Multiple Choice (Single Answer)

What is Allen’s rule?

  1. Birds of colder regions tend to have narrower wings than those of warmer regions.
  2. Fish found in cold waters tend to have more vertebrae than those found in warm waters.
  3. Mammals, birds and insects found in tropical regions are darker in colour than those found in arctic regions.
  4. Mammals and birds of colder regions are larger in size than those of warmer regions.
  5. Mammals living in cold regions tend to have shorter ears and limbs than those found in warm areas.
Question 12 Multiple Choice (Single Answer)

What is the study of pollen grains called?

  1. Anthology
  2. Pomology
  3. Palynology
  4. Paleontology
  5. Pedology
Question 13 Multiple Choice (Single Answer)

Which microbe is used to produce statins that are being used as blood cholesterol lowering agents?

  1. Monascus purpureus
  2. Trichoderma polysporum
  3. Byssochalmys fulva
  4. Streptococcus
  5. Saccharomyces fragalis
Question 14 Multiple Choice (Single Answer)

What is spermiation?

  1. Transformation of spermatids into spermatozoa
  2. Formation of ova in the Graafian follicles of ovary
  3. Differentiation of cells at specific locations of the germ layers of gastrula to form the organ rudiments
  4. Release of sperms from seminiferous tubules
  5. Release of ova from Graafian follicle
Question 15 Multiple Choice (Single Answer)

Which trophic level is occupied by herbivores in a typical forest food chain?

  1. Primary producers
  2. Primary consumers
  3. Secondary consumers
  4. Tertiary consumers
  5. First trophic level