Uttar Pradesh PSC Exam: Zoology MCQs (Practice_Test 38 of 112)

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  1. The blastomeres formed as a result of cleavage of fertilized egg, lack
    1. G1-phase
    2. S-phase
    3. G2-phase
    4. M-phase
  2. A pregnant human female excretes
    1. Progesteione
    2. FSH
    3. LH
    4. HCG
  3. Fructose 2,6-biphosphate stimulates glycol sis by activating
    1. Phosphofructokinase-1
    2. Pyruvate kinase
    3. Hexokinase
    4. Fructose 1 − 6 phosphatase
  4. Consider the following statements:
    1. Pheromones are external secretary products
    2. Pheromones are species-specific

    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
  5. Gastric digestion is most important for
    1. Lipids
    2. Proteins
    3. Carbohydrates
    4. Minerals
  6. Consider the following regions:
    1. Andaman and Nicobar Islands
    2. Western Ghats
    3. Uttar Pradesh
    4. North Eastern India
    5. West Bengal

    In which of the above regions are tropical rain forests found?

    1. 1,2, 3,4 and 5
    2. 2,3 and 5
    3. 1,3 and 4
    4. 1,2 and 4
  7. The greatest amount of fat absorption occurs in the
    1. Stomach
    2. Duodenum
    3. Ileum
    4. Colon
  8. Which one of the following enzymes is inhibited by glucose 6-phosphate?
    1. Glucokinase
    2. Phosphoglycerokinase
    3. Hexokinase
    4. Glucose 6-phosphatase
  9. In Embden-Meyerh of pathway, what is the enzyme involved in the conversion of Glyceraldehyde-3-phosphate to 1-. 3, diphosphoglyceric acid?
    1. Phosphoglucomutase
    2. Phosphoglyceromutase
    3. 3-phosphoglyceric 1-kinase
    4. Phosphoglyceric dehydrogenase
  10. Consider the following with reference to the mechanism of action of a steroidal hormone on target cell
    1. Bonding of activated complex with specific genomic site
    2. Activation of transcriptional apparatus
    3. Attachment with cytosolic receptor protein
    4. Transportation of complex to the nucleus
    5. Formation of new protein in the cytoplasm

    What is the correct sequence of the above in said mechanism

    1. 1, 2,3, 4,5
    2. 4, 1,3, 2,5
    3. 2, 3,1, 4,5
    4. 3, 4,1, 2,5
  11. Which one of the following is the correct sequence of the evolution of modern man?
    1. Pithecanthropus, Sinanthropus, Neanderthal man, Homo sapiens, Cro-magnon man
    2. Pithecanthropus, Sinanthropus, Neanderthal man, Cro-magnon man, Homo sapiens
    3. Cro-magnon man, Neanderthal man, Pithecanthropus, Sinanthropus, Homo sapiens
    4. Ramapithecus, Cro-magnon man

    Pithecanthropus, Neanderthal man.

    Homo sapiens

  12. The ideal conditions for controlling insectpests is
    1. Low relative humidity arid high temperature
    2. High relative humidity and low temperature
    3. High relative humidity and high temperature
    4. Low relative humidity and low temperature
  13. The only ape found in India is distributed in
    1. Western Ghats
    2. Western Himalayas
    3. Eastern coast of peninsular India
    4. North Eastern India
  14. Which among the following, although not closely related taxonomically, occupy the overlapping niche when present in the grassland ecosystems?
    1. Cow, tiger and elephant
    2. Antelopes, lion and zebra
    3. Kangaroo, bison and cow
    4. Kangaroo, rat and monkey
  15. Match List I (Zone) with List II (Feature) and select the correct answer:
    List-IList-II
    1. Neretic Zone
    2. Littoral Zone
    3. Abyssal Zone
    4. Bathyal Zone
    1. Total darkness
    2. Depth of 500 − 600 ft.
    3. Region between the high & low tides
    4. Depths of 600 − 5000 ft.
    • A
    • B
    • C
    • D
      • 4
      • 1
      • 3
      • 2
      • 2
      • 1
      • 3
      • 4
      • 4
      • 3
      • 1
      • 2
      • 2
      • 3
      • 1
      • 4

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