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In organisms showing internal fertilization, female gamete is non-motile. Lack of motility is advantageous because it

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Important Questions on Reproduction in Organisms

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 of the following animal is not viviparous?
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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 plants is monoecious?
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 _____.
EASY
Biology>Reproduction>Reproduction in Organisms>Sexual Reproduction
Which is the most common mechanism of genetic variation in the population of sexually-reproducing organism?
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
How many chromosomes are present in meiocytes of a fruit fly?
EASY
Biology>Reproduction>Reproduction in Organisms>Sexual Reproduction
In which among the following animals are arranged in ascending order of a haploid set of chromosome numbers in their gametes?
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Biology>Reproduction>Reproduction in Organisms>Sexual Reproduction
Which of the following sets is hermaphrodite?
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
Select the correct option for seasonal breeders.
EASY
Biology>Reproduction>Reproduction in Organisms>Sexual Reproduction
Which one of the following does NOT represent asexual reproduction?
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Biology>Reproduction>Reproduction in Organisms>Sexual Reproduction
Isogametes are found in:
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Biology>Reproduction>Reproduction in Organisms>Sexual Reproduction
What is seasonal breeder? Give an example.
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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
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Biology>Reproduction>Reproduction in Organisms>Sexual Reproduction

Match the following columns for organisms and meiocytes and choose the correct option.

Column - I
(Name of the Organism)		 Column - II
(Meiocytes)
(P) Housefly (i) 12
(Q) Fruit fly (ii) 42
(R) Butterfly (iii) 08
(S) Rat (iv) 360
HARD
Biology>Reproduction>Reproduction in Organisms>Sexual Reproduction
How is the chromosomal number maintained in sexually reproducing organisms?
EASY
Biology>Reproduction>Reproduction in Organisms>Sexual Reproduction
Which one of the following shows isogamy with non-flagellated gametes?