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Exam Year: 2001

  • Which organelle in the cell, other than nucleus, contains DNA ?

    (a)

    Centriole

    (b)

    Golgi apparatus

    (c)

    Lysosome

    (d)

    Mitochondrion

    Correct Answer:

    (d)

  • Epiphytes are plants which depend on other plants for

    (a)

    food

    (b)

    mechanical support

    (c)

    shade

    (d)

    water

    Correct Answer:

    (b)

  • Assertion (A): Scientists can cut apart and paste together DNA molecules at will, regardless of the source of the molecules. Reason (R): DNA fragments can be manipulated using restriction endonucleases and DNA ligases.

    (a)

    Both A and R are individually true and R is the correct explanation of A

    (b)

    Both A and R are individually true but R is NOT a correct explanation of A

    (c)

    A is true but R is false

    (d)

    A is fasle but R is true

    Correct Answer:

    (a)

  • The cellular and molecular control of programmed cell death is known as

    (a)

    Apoptosis

    (b)

    Ageing

    (c)

    Degeneration

    (d)

    Necrosis

    Correct Answer:

  • Consider the following statements with reference to the Periodic Table of chemical elements : I. lonisation potential gradually decreases along a period. II. In a group of elements, electron affinity decreases as the atomic weight increases. III. In a given period, electronegativity decreases as the atomic number increases. Which of these statement(s) is/are correct ?

    (a)

    I only

    (b)

    II only

    (c)

    I and III

    (d)

    II and III

    Correct Answer:

  • Quartizite is metamorphosed from

    (a)

    Limestone

    (b)

    Obsidian

    (c)

    Sandstone

    (d)

    Shale

    Correct Answer:

  • Which of the following cell organelles play the most significant role in protein synthesis ?

    (a)

    Lysosome and Centrosome

    (b)

    Endoplasmic reticulum and Ribosome

    (c)

    Golgi apparatus and Mitochondria

    (d)

    Lysosome and Mitochondria

    Correct Answer:

    (b)

  • An aqueous solution of copper sulphate is acidic in nature because the salt undergoes

    (a)

    dialysis

    (b)

    electrolysis

    (c)

    hydrolysis

    (d)

    photolysis

    Correct Answer:

  • In an atom, the order of filling up of the orbitals is governed by

    (a)

    Aufbau principle

    (b)

    Heisenberg’s uncertainty principle

    (c)

    Hund’s rule

    (d)

    Pauli’s exclusion principle

    Correct Answer:

  • Which one of the following is the correct sequence in increasing order of molecular weights of the hydrocarbons ?

    (a)

    Methane, ethane, propane and butane

    (b)

    Propane, butane, ethane and methane

    (c)

    Butane, ethane, propane and methane

    (d)

    Butane, propane, ethane and methane

    Correct Answer: