EASY
Earn 100

Formation of zygote is observed in those animals that

(a) Exhibit internal fertilisation
(b) Undergo external fertilisation
(c) Are diploid
(d) Exhibit great synchrony in laying gametes in water
Choose the correct option.

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Important Questions on Reproduction in Organisms

MEDIUM
Biology>Reproduction>Reproduction in Organisms>Sexual Reproduction
Choose the correct statements from the following:
A) Meiosis has to occur if a diploid body has to produce gametes
B) In Cladophora it is not possible to categorise the male and female gametes
C) Organisms exhibiting external fertilization show greater synchrony between sexes
D) In Wolffia isogametes can be seen
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
Assertion (A): Zygote is the link between two generations
Reason (R): Zygote is the product of two gametes and producer of next generation
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
In some plants, the female gamete develops into embryo without fertilization. This phenomenon is known as
EASY
Biology>Reproduction>Reproduction in Organisms>Sexual Reproduction
Chose the incorrect statement of gamete transfer.
EASY
Biology>Reproduction>Reproduction in Organisms>Sexual Reproduction
Which of the following plants is monoecious?
EASY
Biology>Reproduction>Reproduction in Organisms>Sexual Reproduction
Strobilanthus kunthiana flowers once in _______
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

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
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 does NOT represent asexual reproduction?
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?
MEDIUM
Biology>Reproduction>Reproduction in Organisms>Sexual Reproduction
Which of these combinations are most likely to be present before ovulation occurs?
HARD
Biology>Reproduction>Reproduction in Organisms>Sexual Reproduction
Arrhenotoky is absent in which organism?
EASY
Biology>Reproduction>Reproduction in Organisms>Sexual Reproduction
Select the plant species which flower only once in their life time, generally after 50-100 years, produce large number of fruits and die.
MEDIUM
Biology>Reproduction>Reproduction in Organisms>Sexual Reproduction
The term ‘clone’ cannot be applied to offspring formed by sexual reproduction because:
EASY
Biology>Reproduction>Reproduction in Organisms>Sexual Reproduction
Proper embryonic care and protection increase chances of survival of young ones in