Question

Select the correct statements from the following.
I. Endosperm is generally triploid in angiosperms.
II. All angiosperms have monosporic and endosporic embryo sac.
III. Angiosperms are characterised by double-fertilization.
IV. All angiosperms show-indirect pollination and siphonogamy.

• A. I, II and III
• B. II, III and IV
• C. I, III and IV
• D. I, II, III and IV

Answer 1

Answer: (C)

I, III and IV

In angiosperms one sperm nucleus unites with the egg to form the diploid zygote, from which the embryo develops and the other unites with two polar nuclei to form the triploid, primary endosperm nucleus.

All angiosperms are characterised by double fertilization.

In angiosperms pollen fall on the stigma as the ovules are placed inside the ovary. So, it is called as indirect pollination.

Siphonogamy is a condition in plants in which pollen tubes are developed for the transfer of the male cells to the eggs. It is seen in angiosperms.

So, the correct answer is 'I, III and IV'