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Question

What is the chemical nature of outer covering of pollen ?

Prabhat Rajore · Accepted Answer

Sporopollenin. It is the most chemically inert polymer which can withstand high temperature , strong acids and alkali and no enzyme has been found that can degrade it.  - Wired Faculty

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Sexual Reproduction In Flowering Plants

What is the chemical nature of outer covering of pollen ?

Some More Questions From Sexual Reproduction in flowering Plants Chapter

Simultaneous meiotic division of microspore mother cells leads to :

The fertilization occurs in the :

The female gametophyte of a typical dicot at the time of fertilization is:

Development of embryo from any cell of nucellus is called :

Parthenocarpic fruit is :

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

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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

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