Cleistogamous flowers are...

Cleistogamous flowers are

Wind pollinated

Insect pollination

Bird pollinated

Self pollination.

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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

DINESH PUBLICATION ENGLISH-NO IDEA-Brain Teasers

Cleistogamous flowers are
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A structure present in the ovule as well as eggs of birds is
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A plant in which fertilization occurs after the shedding of seed is
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In ovule, exostome is
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Group of specialized thickened nucellar cells between embryo sac and c...
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Hypostase is meant for providing
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A group of specialised nucellar cells between embryo sac and micropyle...
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Sasa paniculata contains a large number of antipodal cells. The number...
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Antipodal cells enlarge tremendously in (a) Sasa (b) Caltha (c) Ac...
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Which one develops from funicle of base of ovule? (a) Sarcotesta (b) ...
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Which one develops from exostome
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In tenuinucellate ovules, the nucellus may break down. The nourishment...
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Endothelium develops from (a) Nucellus (b) Nucellus surrounding embr...
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Middle layers of pollen sac wall are absent in
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Growth of pollen tube is
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The apical growing region of pollen tube is called
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Functional part of pollen tube is separated from the rest by
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Pollen tube cytoplasm is like any other living cell in showing (a) Cal...
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Male nucleus fuses with female nucleus during fertilization in Angiosp...
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Which one is true of male gamete of angiosperms
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Heterofertilization is
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