Competitive Exams: Zoology MCQs (Practice_Test 53 of 112)

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1. • Assertion (A): In the zygote, there is no cytoplasmic contribution from paternal side.
   • Reason (R): The cytoplasm of the sperm is discarded just before fertilization.

   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

2. • Assertion (A): Only the male offspring of the homophilia father suffers from the disease.
   • Reason (R): Haemophilia is an X-linked dominant disease.

   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

3. • Assertion (A): Nucleolus is the site for rRNA synthesis.
   • Reason (R): rRNA is needed for its function within the nucleus.

   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

4. • Assertion (A): Glycine is an optically active amino acid.
   • Reason (R): The a-carbon in glycine is asymmetric.

   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

5. • Assertion (A): Increase in the atmospheric temperature results in higher relative humidity.
   • Reason (R): High ambient temperature increases the capacity of the air to retain moisture.

   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

6. The class of Arthropoda which has thin cuticle and dermo-muscular body wall is:

   1. Crustacea

   2. Arachnida

   3. Onychophora

   4. Myriapoda

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

   List-I	List-II
   Sea Lemon Sea Hare Cowrie Coat of mail shells	Chiton Cypraea Aplysia Doris

   • A
   • B
   • C
   • D
   1. • 1
      • 2
      • 3
      • 4
   2. • 4
      • 3
      • 2
      • 1
   3. • 1
      • 3
      • 2
      • 4
   4. • 4
      • 2
      • 3
      • 1

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

   List-I	List-II
   May fly Stone fly Caddish fly Dobson fly	Trichoptera Ephemeroptera Plecoptera Megaloptera

   • A
   • B
   • C
   • D
   1. • 4
      • 3
      • 1
      • 2
   2. • 2
      • 1
      • 3
      • 4
   3. • 4
      • 1
      • 3
      • 2
   4. • 2
      • 3
      • 1
      • 4

9. In the pedipalps of scorpion, what is the proximal distal sequence of segments between coxa and tarsus?

   1. Trochanter-femur-patella-tibia

   2. Tibia-patella-femur-trochanter

   3. Femur-tibia-patella-trochanter

   4. Trochanter-femur-tibia-patella

10. With reference to Amphibians, consider the following statements

    1. Rhacophorus does not exhibit true flight as it simply glides in the air for short distances.

    2. Hyla is the only amphibian that does not possess arboreal adaptations.

    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 is not a characteristic of Bryozoa?

    1. They are microscopic colonial forms

    2. They are included under the group ‘Lophophorate Coelomates’

    3. Alimentary canal is always in the form of a straight tube

    4. The colony is composed of Zooids

12. Consider the following statements:

    1. In Neanthes, four pairs of spermathecae are found.

    2. In Hirudinaria, albumen glands are present at the junction of two oviducts.

    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

13. The cryptozoite stage in the life cycle of Plasmodium is found in which one of the following?

    1. Human erythrocytes

    2. Human hepatocytes

    3. Salivary glands of Anopheles

    4. Intestinal epithelium of Anopheles

14. Lysosomes may originate from which of the following?

    1. Endoplasmic reticulum only

    2. Golgi complex only

    3. Either from endoplasmic reticulum or Golgi complex or both

    4. Neither from endoplasmic reticulum nor from Golgi complex

15. With reference to Palaemon, which one of the following statements is correct?

    1. Hastate plate is present in pyloric stomach

    2. 13 pairs of cephalothoracic and 6 pairs of abdominal appendages are present

    3. Statocyst as a sensory structure is located at the base of second antenna only and attached to ventral wall

    4. The gonopore in male is present at the base of each fourth walking leg