Cleistogamous flowers are...

Cleistogamous flowers are

Viola (common pansy)

Oxalis

Commelina

All the above

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Identify the correct pair of statements (i) White kernel of Coconut is a free nuclear endosperm (ii) In dioecious plants, autogamy is prevented but geitonogamy occurs (iii) Cleistogamous flowers are always self pollinated (iv) Castor is an endospermic seed.

Read the following statements A to D :- A. A typical anther of angiosperm is dithecous. B. Egg apparatus consists of two antipodals and one egg cell. C. Cleistogamous flowers are invariably autogamous. D. If a female parent produces unisexual flowers, there is no need for emasculation. How many of the above statements are right?

Read the following statements, state true (T) or false (F) for them and select the correct option. (a) Cleistogamous flowers prevent geitonogamy as well as xenogamy. (b) Double fertilisation occurs in all spermatophytes. (c) In pea family, the single cotyledon is called scutellum. (d) Seeds of castor and coconut retain a part of endosperm during embryo development.

Asertion :- Cleistogamy is disadvantageous for plants. Reason:- Cleistogamous flowers do not opens so sex organs do not receive sufficient light,which is essential for maturation of gametes.

In cleistogamous flowers, self-pollination takes place. Why?

What are chasmogamous flowers? Can cross-pollination occur in cleistogamous flowers? Give reasons for your answer.

What are chasmogamous flowers ? Can cross-pollination occur in cleistogamous flower ? Give reasons for your answer ?

The flower of brinjal is referred to as chasmogamous while that of bean's cleistogamous. How are they different from each other ?

Explain type of pollination is found in cleistogamous flower

Sea Flowers are

ALLEN-REPRODUCTION IN ORGANISMS AND SEXUAL REPRODUCTION IN FLOWERING PLANTS-EXERCISE-III (A) (NCERT BASED QUESTIONS)

Arising from the placenta are the megasporangia, commonly called:
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A large shield shaped cotyledon found in some monocotyledonous seeds i...
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In grasses, epicotyl has a shoot apex & a few leaf primordia enclosed ...
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Cleistogamous flowers are
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Although in most of species fruits are result of fertilisation, there ...
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Non-albuminous seeds occur in
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Persistent nucellus in the seed is known as
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Coconut water from a tender coconut is
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Fusion of one of the male gametes with egg nucleus is referred to as
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Endosperm of angiosperm is :-
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Transfer of pollen grains from the anther to the stigma of another flo...
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Perisperm is present in
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The part of pistil which acts as landing platform for pollen grain is
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The innermost wall layer of pollen sac is tapetum. Its function is in
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Two non motile male gametes in angiosperms are produced by :-
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Part of Castor seed that yields oil is (a) Caruncle (b) Endsoperm ...
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Which one of the following is a false fruit ?
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Aleurone layer that is protein rich found in some cereals is a part of...
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In angiosperms, functional megaspore develops into
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Nucelllar polembryony is reported in species of
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