Competitive Exams: Zoology MCQs (Practice-Test 30 of 112)

  1. The important contribution of Miller and Urey in the field of origin of life is the finding that

    1. organisms can originate from pre-existing forms

    2. life on earth, as we know today, originated extraterrestrially

    3. viruses are not the ancestors of other primitive organisms

    4. organic compounds can be formed without the intervention of living organisms

  2. Discontinuous distribution is exhibited by

    1. Dipnoi, rodents and tapirs

    2. Gymnophiona, passerine birds and king crabs

    3. Gymnophiona, Dipnoi and marsupials

    4. King crabs, marsupials and giraffe

  3. Match List I with List II and select the correct answer:

    List-I (Common names of hominids) List-II (Generic names of hominids)
    1. African ape man

    2. Java ape man

    3. Peking man

    4. Neanderthal man

    1. Sinanthropus

    2. Pithecanthropus

    3. Homo

    4. Astralopithecus

    • A
    • B
    • C
    • D
      • 1
      • 3
      • 4
      • 2
      • 4
      • 3
      • 1
      • 2
      • 1
      • 2
      • 4
      • 3
      • 4
      • 2
      • 1
      • 3
  4. Consider the following statements: The main objective (s) to the concept of species based upon gene flow between related populations (biological species) is/are

    1. it is not applicable to many species of Protozoa and lower Metazoa, and plants which reproduce asexually or parthenogenetically.

    2. the occurrence of organisms in which sub-specific or specific status is disputed.

    3. the occurrence of immense variety (breeds) of animals (e. g. Dog, horse and chicken) produced by artificial selection.

    Which of these statements is/are correct?

    1. 1 only

    2. 2 only

    3. 1 and 2

    4. 3 only

  5. Which of the following groups of animals studied by Darwin in his visit to Galapagos led him to advance his theory of evolution?

    1. Flightless birds, giant iguana lizard and cave-dwelling fishes

    2. Finches, giant land tortoises and cavedwelling newts

    3. Giant land tortoises, armadillos and opossums

    4. Finches, giant iguana lizard and giant land tortoises

  6. Even though the continents of North America and South America are connected with each other by Panamanian (Central American) land bridge, there are marked differences in the fauna (especially mammals) between the two continents. This is because

    1. the Panamanian land bridge was covered by thick forests during most of the Tertiary times which formed a formidable barrier for the exchange of fauna

    2. the mountain ranges in the Panamanian land bridge served as a barrier for the exchange of fauna

    3. the South American continent remained isolated from the northern continent during much of Tertiary times and the Panamanian land bridge emerged only at the close of the Pliocene period

    4. during most of the Tertiary times the

    Central American region consisted of swamps which discouraged the exchange of fauna

  7. Which one of the following pairs is NOT correctly matched?

      • Lion, tiger and giraffe
      • Ethiopian region
      • Marsupial, armadillo
      • Neotropical region and sloth
      • Elephant, orang-utan
      • Oriental region and tarsier
      • Opossum, lynx
      • Nearctic region caribou
  8. Match List I with List II and select the correct answer:

    List-I (Names of fossil ape-men) List-II (Associated cultures)
    1. Java man

    2. Cro-Magnon man

    3. Oldest Egyptian man

    4. Neanderthal man

    1. Moutserion culture

    2. Neo-lithic culture

    3. Upper Paleolithic culture

    4. Lower Paleolithic culture

    • A
    • B
    • C
    • D
      • 2
      • 3
      • 4
      • 1
      • 4
      • 1
      • 2
      • 3
      • 2
      • 1
      • 4
      • 3
      • 4
      • 3
      • 2
      • 1
  9. Which one of the following is a correct set of endangered species of India?

    1. Great Indian bustard, Musk deer, Asiatic lion, Royal Bengal tiger

    2. Kasmiri stag, Cheetal, Blue bull, Great Indian bustard

    3. Snow leopard, Swamp deer, Free ranging rhesus monkey, Hanuman Langur

    4. lion-tailed macque, Blue bull

    Hanuman Langur, Cheetal

    • Assertion (A): Enlargement of spleen in a malarial patient is due to haemorrhage of arteries.
    • Reason (R): DNA unfolds into, open loops to facilitate RNA synthesis in the puff.
    1. Both A and R are individually true and R is the correct explanation of A

    2. Both A and R are individually true but R is not the correct explanation of A

    3. A is true but R is false

    4. A is false but R is true

    • Assertion (A): Enlargement of spleen in a malarial patient is, due to haemorrhage of arteries.
    • Reason (R): Infective stages of

    Plasmodium are responsible for causing excessive proliferation of erythrocytes.

    1. Both A and R are individually true and R is the correct explanation of A

    2. Both A and R are individually true but R is not the correct explanation of A

    3. A is true but R is false

    4. A is false but R is true

    • Assertion (A): Miracidium larve of Fasciola is endowed with cilia, penetration gland and apical gland.
    • Reason (R): The structure of Miracidium is best adapted to penetrate into the liver and gall bladder of sheep.
    1. Both A and R are individually true and R is the correct explanation of A

    2. Both A and R are individually true but R is not the correct explanation of A

    3. A is true but R is false

    4. A is false but R is true

    • Assertion (A): A cell placed in an isotonic solution shows no change in size or volume.
    • Reason (R): Isotonic solutions have the same chemical composition as the cell cytoplasm.
    1. Both A and R are individually true and R is the correct explanation of A

    2. Both A and R are individually true but R is not the correct explanation of A

    3. A is true but R is false

    4. A is false but R is true

    • Assertion (A): Cardiac muscle cells contain much larger amounts of RNA than pancreatic cells.
    • Reason (R): High-protein-producing cells contain larger amounts of RNA in comparison to low-protein-producing cells.
    1. Both A and R are individually true and R is the correct explanation of A

    2. Both A and R are individually true but R is not the correct explanation of A

    3. A is true but R is false

    4. A is false but R is true

    • Assertion (A): Responses mediated by peptide hormones such as insuline are relatively slow.
    • Reason (R): The polypeptide hormones are rapidly removed from the blood by hydrolytic enzymes.
    1. Both A and R are individually true and R is the correct explanation of A

    2. Both A and R are individually true but R is not the correct explanation of A

    3. A is true but R is false

    4. A is false but R is true