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Sexual Reproduction In Flowering Plants

Question
CBSEENBI12047326
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Seed coat is not thin, membranous in

  • maize

  • coconut

  • groundnut

  • gram

Solution

B.

coconut

The seed coat develops from the maternal tissue, the integuments, originally surrounding the ovule. The seed coat in the mature seed can be a paper-thin layer (e.g. peanut) or something more substantial (e.g. thick and hard in honey locust and coconut), or fleshy as in the sarcotesta of pomegranate. Therefore, it is thick in coconut seed and thin, membranous in groundnut, gram and maize seeds.

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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