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Sexual Reproduction In Flowering Plants

Question

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Compare the structure of a non-endospermic (non-albuminous) seed with an endospermic (albuminous) dicot seed.

Solution

Non-endospermic Seed

Endospermic Seed

1. The testa is soft and thin.

2. The endosperm is absent.

3. The cotyledons are thick.

4. The food is stored in the cotyledons.

Examples : Pea, Bean and Mustard.

1. The testa is very hard and brittle.

2. The endosperm is present.

3. The cotyledons are thin and papery.

4. The food is stored inside the endosperm.

Examples : Rice, wheat, maize, castor.

Some More Questions From Sexual Reproduction in flowering Plants Chapter

Parthenocarpic fruit is :

The entry of pollen tube into embryo sac through the integuments is termed as :

512 microspores will be formed following meiosis of how many microspore mother cells.

Pollination by water occurs in :

In ................... flowers, the thalamus grows upwards completely enclosing the ovary, and the stamens, petals and sepals are borne above the ovary.

In Calotropis, all the microspores of anther lobe remain united to form

Albuminous seeds store reserve food materials in ....................

Transfer of pollen grains from the anther to the stigma of another flower of same plant is called..............................

The...................direct the growth of pollen tube towards egg apparatus by secreting some chemical substances.

A kind of reproduction in which the new individuals are formed without involvement of meiosis and syngamy.

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