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AIPMT 2010 Biology

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Q. 17.    The scutellum observed in a grain of wheat or maize is comparable to which part of the seed in other monocotyledons?

  1. Cotyledon
  2. Endosperm
  3. Aleurone layer
  4. Plumule

Answer: (1)

Q. 18.    The energy − releasing metabolic process in which substrate is oxidised without an external electron acceptor is called:

  1. Glycolysis
  2. Fermentation
  3. Aerobic respiration
  4. Photorespiration

Answer: (1)

Q. 19. Photoperiodism was first characterised in:

  1. Tobacco
  2. Potato
  3. Tomato
  4. Cotton

Answer: (1)

Q. 20 .    The second maturation division of the mammalian ovum occurs:

  1. Shortly after ovulation before the ovum makes entry into the Fallopian tube
  2. Until after the ovum has been penetrated by a sperm
  3. Until the nucleus of the sperm has fused with that of the ovum
  4. in the Graafian follicle following the first maturation division

Answer: (2)

Q. 21.    Satellite DNA is useful tool in:

  1. Organ transplantation
  2. Sex determination
  3. Forensic science
  4. Genetic engineering

Answer: (3)

Q. 22. Which one of the following does not follow the central dogma of molecular biology?

  1. Pea
  2. Mucor
  3. Chlamydomonas
  4. HIV

Answer: (4)

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