Competitive Exams: Zoology MCQs (Practice-Test 52 of 112)

  1. identification of which one of the following?

    1. Protein binding sites within DNA

    2. Introns within a gene

    3. Particular mRNAs in a mixture

    4. Particular tRNAs in a mixture

  2. Which one of the following pairs of amino acids contains aromatic ring?

    1. Praline and histidine

    2. Phenylalanine and proline

    3. Tyrosine and histidine

    4. Tyrosine and phenylalanine

  3. Which one of the following techniques is used to separate very large molecules of DNA?

    1. Gel filteration chromatography

    2. Affinity chromatography

    3. Pulse-field gradient electrophoresis

    4. Dialysis

  4. Match List-I with List-II and select the correct answer using the code given below the lists:

    List-I (Hormone) List-II (Function)
    1. Vasopressin

    2. Parathormone

    3. Ecdysone

    4. Relaxin

    1. Regulation of pelvic ligament

    2. Moulting

    3. Increase in blood pressure

    4. Regulation of Ca + + in bone

    • A
    • B
    • C
    • D
      • 3
      • 4
      • 2
      • 1
      • 3
      • 2
      • 4
      • 1
      • 1
      • 3
      • 2
      • 3
      • 1
      • 2
      • 4
      • 3
  5. Consider the following statements:

    1. In the case of Klinefelter's syndrome, the males possess a Barr body.

    2. Adult females with Turner's syndrome generally suffer from mental retardation.

    Which of the statements given above is/are correct?

    1. 1 only

    2. 2 only

    3. Both 1 and 2

    4. Neither 1 nor 2

  6. Among the following amino acids, which one is coded-by only one codon?

    1. Valine

    2. Isoleucine

    3. Tryptophan

    4. Glycine

  7. Consider the following statements:

    1. DNA synthesis takes place in 5 ‘to 3’ direction.

    2. Primers are removed by DNA polymerase III.

    3. ‘Proof-reading’ is done by RNA polymerase I.

    Which of the statements given above is/are correct?

    1. 1 only

    2. 1 and 2 only

    3. 3 only

    4. 1, 2 and 3

  8. Yeast artificial chromosome is used for cloning

    1. Only yeast genomic DNA

    2. Only cDNA sequences

    3. Large segments of DNA

    4. All DNA except animal DNA sequences

  9. Match List-I with List-II and select the correct answer using the code given below the lists:

    List-I (Species) List-II (Commonly known as)
    1. Apis mellifera

    2. Apis indica

    3. Apis adamsoni

    4. Apis dorsata

    1. Common honey bee which can be easily domesticated

    2. Giant or rock honey bee

    3. European honey bee

    4. African honey bee

    • A
    • B
    • C
    • D
      • 2
      • 4
      • 1
      • 3
      • 2
      • 1
      • 4
      • 3
      • 3
      • 1
      • 4
      • 2
      • 3
      • 4
      • 1
      • 2
  10. Consider the following statements:

    1. Contractile vacuoles in Paramecium help in osmoregulation.

    2. Peristome in Paramecium is situated on its ventral surface.

    Which of the statements given above is/are correct?

    1. 1 only

    2. 2 only

    3. Both 1 and 2

    4. Neither 1 nor 2

  11. Which one of the following kinds of organisms is the vector for Leishmaniasis?

    1. Black flies

    2. Sand flies

    3. Midges

    4. Mosquitoes

  12. At what stage in the life of a human female is meiosis initiated in her ovary?

    1. At puberty

    2. At ten years of age

    3. At foetal stage

    4. When she conceives

  13. Match List-I with List-II and select the correct answer using the code given below the lists:

    List-I (Common name of the snake) List-II (Identity)
    1. Coral snake

    2. Viper

    3. Sea snake

    4. Cobra

    1. Head triangular and covered by scales

    2. Tail laterally compressed

    3. Third supra labial touches the eye and nostril shield; brilliantly coloured

    4. Hood is present

    • A
    • B
    • C
    • D
      • 4
      • 2
      • 1
      • 3
      • 4
      • 1
      • 2
      • 3
      • 3
      • 2
      • 1
      • 4
      • 3
      • 1
      • 2
      • 4
  14. Pyruvate dehydrogenase is a complex of how many enzymes?

    1. Two

    2. Three

    3. Four

    4. Five

  15. Among the following, which one is the most productive ecosystem in terms of mean net primary productivity (g/m2/year)?

    1. Tropical rain forest

    2. Tropical seasonal forest

    3. Swamp and marsh

    4. Coral reef