EASY
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Give one example of a unicellular organism in which isogamy occurs.

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Important Questions on Reproduction in Organisms

HARD
Biology>Reproduction>Reproduction in Organisms>Sexual Reproduction
Which of the following flowers only once in its life-time?
EASY
Biology>Reproduction>Reproduction in Organisms>Sexual Reproduction
Which one of the following does NOT represent asexual reproduction?
EASY
Biology>Reproduction>Reproduction in Organisms>Sexual Reproduction
Which of the following plants is monoecious?
MEDIUM
Biology>Reproduction>Reproduction in Organisms>Sexual Reproduction
Mosses and frogs both need water as a medium for fertilization. Where does the syngamy occur and how is it ensured in both these organisms?
EASY
Biology>Reproduction>Reproduction in Organisms>Sexual Reproduction
Which one of the following is NOT a mode of asexual reproduction?
MEDIUM
Biology>Reproduction>Reproduction in Organisms>Sexual Reproduction
Match the items given in Column I with those in Column II and select the correct option given below:
 
  Column – I   Column – II
a. Proliferative Phase i. Breakdown of an endometrial lining.
b. Secretory Phase ii. Follicular Phase
c. Menstruation iii. Luteal Phase
MEDIUM
Biology>Reproduction>Reproduction in Organisms>Sexual Reproduction
Morphologically and Physiologically similar and usually motile and flagellated gametes are known as_____and its correct example is _____.
MEDIUM
Biology>Reproduction>Reproduction in Organisms>Sexual Reproduction
Write the basis of categorising animals as oviparous or viviparous, giving one example of each.
EASY
Biology>Reproduction>Reproduction in Organisms>Sexual Reproduction
In some plants, the female gamete develops into embryo without fertilization. This phenomenon is known as
EASY
Biology>Reproduction>Reproduction in Organisms>Sexual Reproduction
Which one of the following shows isogamy with non-flagellated gametes?
EASY
Biology>Reproduction>Reproduction in Organisms>Sexual Reproduction

Match the following:

  List - I   List - II
A) Isogamy I) Vorticella
B) Anisogamy II) Plasmodium
C) Hologamy III) Monocystis
D) Conjugation IV) Amoeba
    V) Trichonympha

The correct match is

EASY
Biology>Reproduction>Reproduction in Organisms>Sexual Reproduction
Which is the most common mechanism of genetic variation in the population of sexually-reproducing organism?
EASY
Biology>Reproduction>Reproduction in Organisms>Sexual Reproduction
Which one of the following generates new genetic combinations leading to variation?
EASY
Biology>Reproduction>Reproduction in Organisms>Sexual Reproduction
Which of the following animal is not viviparous?
EASY
Biology>Reproduction>Reproduction in Organisms>Sexual Reproduction
Offspring formed due to sexual reproduction have better chances of survival. Why? Is this statement always true?
MEDIUM
Biology>Reproduction>Reproduction in Organisms>Sexual Reproduction
Differentiate between monoecious and dioecious plants. Give one example of each.
MEDIUM
Biology>Reproduction>Reproduction in Organisms>Sexual Reproduction
How does the progeny formed from asexual reproduction differ from those formed by sexual reproduction?
MEDIUM
Biology>Reproduction>Reproduction in Organisms>Sexual Reproduction
Distinguish between asexual and sexual reproduction. Why is vegetative reproduction also considered as a type of asexual reproduction?
EASY
Biology>Reproduction>Reproduction in Organisms>Sexual Reproduction
Which are exclusively viviparous?
MEDIUM
Biology>Reproduction>Reproduction in Organisms>Sexual Reproduction
What is parthenogenesis? Give two examples.