MEDIUM
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IMPORTANT
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Arrange the sequence of events in microsporogenesis.
(A) Disassociation of microspore as pollen grains
(B) Anther maturation and dehydration
(C) Pollen mother cell undergoes meiotic division
(D) Microspore tetrad

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Important Questions on Sexual Reproduction in Flowering Plants

EASY
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IMPORTANT
Dichogamy and herkogamy are the important devices or modifications to prevent one of the following:
MEDIUM
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IMPORTANT

Match the following lists.

List I List II
A) Animals attracted to flowers by I) Ophiophily
B) Beetles flies are attracted by II) Safe space to lay eggs by insects
C) Pollination by squirrels III) Colour
D) Pollination by snakes IV) Foul odours
E) Amorphophallus V) Therophily

The correct match is:

EASY
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IMPORTANT
Assertion (A) : Sometimes Fig fruits are seen with eggs of the insects.
Reason (R) : In Fig plants, pollination takes place by Blastophaga.
The correct option among the following is:
EASY
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IMPORTANT

Commelina produces flowers which are open and are similar to flowers of other species with exposed anthers and stigma are called ______.

A typical angiospermic embryo sac, at maturity, contains ________ nuclei and _______ cells.

EASY
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IMPORTANT
Identify the difference between herkogamy and decliny in out breeding process respectively.
A) Anther and stigma are placed at different positions.
B) Pollen release and stigma receptivity are not synchronised.
C) Production of unisexual flowers.
D) Pollen release and stigma receptivity are synchronised.
EASY
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IMPORTANT
The sequence of stages during embryogenesis of a dicotyledonous embryo.
HARD
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IMPORTANT
Identify the correct statements among the following.
(A) Ability of the pistil to recognise the pollen is the result of a dialogue between pollen grain and pistil.
(B) Epicotyl has a shoot apex and a few leaf primordia enclosed in a hollow foliar structure coleoptile.
(C) Seed which germinates immediately after formation will be used as store food for next season.
(D) In coconut, the white kernel is cellular endosperm and liquid is the free nuclear endosperm.