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Sexual Reproduction In Flowering Plants

Question
CBSEENBI12047494

Identify the correct pair of statements.

I. White kernal of coconut is a free nuclear endosperm.

II. In dioecious plants, autogamy is prevented but geitonogamy occurs.

III. Cleistogamous flowers are always selfpollinated.

IV. Castor is an endospermic seed.

  • II, IV

  • II, III

  • I, II

  • III, IV

Solution

D.

III, IV

Statement III and IV are correct. 

(III) Cleistogamous flowers never open, so there occur only self - pollination.

(IV) In castor, endospermic seeds are present. These seeds are also known as albuminous seeds. In this type of seeds endosperm grows vigorously and is not completely exhausted by the developing embryo. Cotyledons in this plant are thin.