Cleidoic egg found in :-
 

Important Questions on Reproduction in Organisms

EASY

Biology>Reproduction>Reproduction in Organisms>Sexual Reproduction

Which of the following animal is not viviparous?

EASY

Biology>Reproduction>Reproduction in Organisms>Sexual Reproduction

Match the following:

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

The correct match is

EASY

Biology>Reproduction>Reproduction in Organisms>Sexual Reproduction

Which of the following plants is monoecious?

EASY

Biology>Reproduction>Reproduction in Organisms>Sexual Reproduction

Chose the incorrect statement of gamete transfer.

EASY

Biology>Reproduction>Reproduction in Organisms>Sexual Reproduction

Which one of the following does NOT represent asexual reproduction?

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

Which of the following sets is hermaphrodite?

EASY

Biology>Reproduction>Reproduction in Organisms>Sexual Reproduction

Strobilanthus kunthiana flowers once in _______

HARD

Biology>Reproduction>Reproduction in Organisms>Sexual Reproduction

Which of the following flowers only once in its life-time?

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 one of the following generates new genetic combinations leading to variation?

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?

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

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

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 is the most common mechanism of genetic variation in the population of sexually-reproducing organism?

MEDIUM

Biology>Reproduction>Reproduction in Organisms>Sexual Reproduction

Given below are a few statements related to external fertilisation. Choose the correct statements.
(i) The male and female gametes are formed and released simultaneously.
(ii) Only a few gametes are released into the medium.
(iii) Water is the medium in a majority of organisms exhibiting external fertilisation.
(iv) Offspring formed as a result of external fertilisation have a better chance of survival than those formed inside an organism.

MEDIUM

Biology>Reproduction>Reproduction in Organisms>Sexual Reproduction

The term ‘clone’ cannot be applied to offspring formed by sexual reproduction because:

MEDIUM

Biology>Reproduction>Reproduction in Organisms>Sexual Reproduction

Which of the following situations correctly describe the similarity between an angiosperm egg and a human egg?
(i) Eggs of both are formed only once in a lifetime.
(ii) Both the angiosperm egg and human egg are stationary.
(iii) Both the angiosperm egg and human egg are mobile.
(iv) Syngamy in both results in the formation of zygote.
Choose the correct answer from the options given below: