Chasmocleistogamous flowers

1.  Never open

2.  Open in day

3.  Always open

4.  Few open and some remain closed

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4
Correct Answer :

Few open and some remain closed


Explanation :
No Explanation available for this question

The largest inflorescence of the world is pollinated by

1.  Insects

2.  Snails and slugs

3.  Water

4.  Air

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4
Correct Answer :

Snails and slugs


Explanation :
No Explanation available for this question

In which of the following is transfer mechanism found

1.  Ocimim

2.  Pisum

3.  Calotropis

4.  Yucca

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4
Correct Answer :

Calotropis


Explanation :
No Explanation available for this question

Lever mechanism of pollination is a characteristic adaptation for entomophily in family

1.  Orchidaceae

2.  Compositae

3.  Labiatae

4.  Liliaceae

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4
Correct Answer :

Labiatae


Explanation :
No Explanation available for this question

Bage flower is pollinated by

1.  Aphids

2.  Butterflies

3.  Bees

4.  Moths

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4
Correct Answer :

Bees


Explanation :
No Explanation available for this question

pollination occurs, when a pollen grain

1.  Matures and has three nuclei

2.  Lands on stigma

3.  Releases its sperm nuclei

4.  Releases its sperm

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4
Correct Answer :

Lands on stigma


Explanation :
No Explanation available for this question

Fertilization of the egg takes place inside the

1.  Anther

2.  Stigma

3.  Pollen tube

4.  Embryo sac

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4
Correct Answer :

Embryo sac


Explanation :
No Explanation available for this question

There is only one female Borasses palm on an island and no male palms. There are few male Borasses palms on a near by island. Birds fly frequently between these two islands. The female palm fruits regularly in every reason. What is the agent of pollination

1.  Water

2.  Air

3.  Birgs

4.  None of these

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4
Correct Answer :

None of these


Explanation :
No Explanation available for this question

The phenomenon of maturation of anthers earlier then the stigma of the same flower is

1.  Dicliny

2.  Protandry

3.  Herkogamy

4.  Heterostyly

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4
Correct Answer :

Protandry


Explanation :
No Explanation available for this question

Embryogeny is a branch of embryology dealing with

1.  Nutrition of embryo

2.  Development of embryo

3.  Formation of embryo

4.  Conversion of embryo to adult plant

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4
Correct Answer :

Development of embryo


Explanation :
No Explanation available for this question
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