Competitive Exams: Zoology MCQs (Practice_Test 53 of 112)
Glide to success with Doorsteptutor material for competitive exams : get questions, notes, tests, video lectures and more- for all subjects of your exam.
- 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.
- Both A and R are individually true and R is the correct explanation of A.
- Both A and R are individually true but R is not the correct explanation of A.
- A is true but R is false
- A is false but R is true
- Assertion (A) : Only the male offspring of the homophilia father suffers from the disease.
- Reason (R) : Haemophilia is an X-linked dominant disease.
- Both A and R are individually true and R is the correct explanation of A.
- Both A and R are individually true but R is not the correct explanation of A.
- A is true but R is false
- A is false but R is true
- Assertion (A) : Nucleolus is the site for rRNA synthesis.
- Reason (R) : rRNA is needed for its function within the nucleus.
- Both A and R are individually true and R is the correct explanation of A.
- Both A and R are individually true but R is not the correct explanation of A.
- A is true but R is false
- A is false but R is true
- Assertion (A) : Glycine is an optically active amino acid.
- Reason (R) : The a-carbon in glycine is asymmetric.
- Both A and R are individually true and R is the correct explanation of A.
- Both A and R are individually true but R is not the correct explanation of A.
- A is true but R is false
- A is false but R is true
- 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.
- Both A and R are individually true and R is the correct explanation of A.
- Both A and R are individually true but R is not the correct explanation of A.
- A is true but R is false
- A is false but R is true
- The class of Arthropoda which has thin cuticle and dermo-muscular body wall is:
- Crustacea
- Arachnida
- Onychophora
- Myriapoda
- 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
- 2
- 3
- 4
- 4
- 3
- 2
- 1
- 1
- 3
- 2
- 4
- 4
- 2
- 3
- 1
- 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
- 4
- 3
- 1
- 2
- 2
- 1
- 3
- 4
- 4
- 1
- 3
- 2
- 2
- 3
- 1
- 4
- In the pedipalps of scorpion, what is the proximal distal sequence of segments between coxa and tarsus?
- Trochanter-femur-patella-tibia
- Tibia-patella-femur-trochanter
- Femur-tibia-patella-trochanter
- Trochanter-femur-tibia-patella
- With reference to Amphibians, consider the following statements
- Rhacophorus does not exhibit true flight as it simply glides in the air for short distances.
- Hyla is the only amphibian that does not possess arboreal adaptations.
Which of the statements given above is/are correct?
- 1 only
- 2 only
- Both 1 and 2
- Neither 1 nor 2
- Which one of the following is not a characteristic of Bryozoa?
- They are microscopic colonial forms
- They are included under the group ‘Lophophorate Coelomates’
- Alimentary canal is always in the form of a straight tube
- The colony is composed of Zooids
- Consider the following statements:
- In Neanthes, four pairs of spermathecae are found.
- In Hirudinaria, albumen glands are present at the junction of two oviducts.
Which of the statements given above is/are correct?
- 1 only
- 2 only
- Both 1 and 2
- Neither 1 nor 2
- The cryptozoite stage in the life cycle of Plasmodium is found in which one of the following?
- Human erythrocytes
- Human hepatocytes
- Salivary glands of Anopheles
- Intestinal epithelium of Anopheles
- Lysosomes may originate from which of the following?
- Endoplasmic reticulum only
- Golgi complex only
- Either from endoplasmic reticulum or Golgi complex or both
- Neither from endoplasmic reticulum nor from Golgi complex
- With reference to Palaemon, which one of the following statements is correct?
- Hastate plate is present in pyloric stomach
- 13 pairs of cephalothoracic and 6 pairs of abdominal appendages are present
- Statocyst as a sensory structure is located at the base of second antenna only and attached to ventral wall
- The gonopore in male is present at the base of each fourth walking leg