Reproduction In Organisms

13 Questions
  1. 1
    Which of the following statements is/are correct regarding vegetative propagation of plants?
    1. Vegetative propagation produces clonal population.
    2. Vegetative propagation helps in eliminating the virus.
    3. Vegetative propagation can be practiced most of the year.
    Select the correct answer using the code given below.
    UPSC CSE I - 2014
  2. 2
    Consider the following kinds of organisms:
    1. Bat
    2. Bee
    3. Bird
    Which of the above is/are pollinating agent/agents?
    UPSC CSE I - 2012
  3. 3

    Consider the following statements:

    1. Sweet orangà plant is propagated by grafting technique.
    2. Jasmine plant is propagated by layering technique.

    Which of the statements given above is/are correct?

    UPSC CSE I - 2009
  4. 4

    Among the following, which one lays eggs and does not produce young ones directly?

    UPSC CSE I - 2008
  5. 5

    In which of the following kinds of organisms is the phenomenon found wherein the female kills the male after copulation?

    UPSC CSE I - 2008
  6. 6

    In human beings, normally in which one of the following parts, does the sperm fertilize the ovum?

    UPSC CSE I - 2007
  7. 7

    Assertion (A): Amoeba reproduces by fission.

    Reason (R): All unicellular organisms reproduce by asexual methods.

    UPSC CSE I - 2005
  8. 8

    Which one of the following is monogamous?

    UPSC CSE I - 2002
  9. 9

    In a bisexual flower, if androecium and gynoecium mature at different times, the phenomenon is known as

    UPSC CSE I - 2002
  10. 10

    Consider the following plants

    1. Bougainvillea
    2. Carnations.
    3. Cocoa
    4. Grapes

    Which of these plants are propagated by stem cuttings?

    UPSC CSE I - 2002
  11. 11

    Assertion (A): In human beings, the females play a major role in determining the sex of the offspring. Reason (R): Women have two ‘X’ chromosomes.

    UPSC CSE I - 2000
  12. 12

    Match List-I with List-II and select the correct answer by using the codes given below the lists

    List-I List-II
    A. Fniit 1. Ovule
    B. Seed 2. Leaf
    C. Wood 3. Stem
    D. Starch 4. Ovary

    Codes:
    ABCD

    UPSC CSE I - 1998
  13. 13

    Corpus luteum is a mass of cells found in

    UPSC CSE I - 1997