Chapter 23, Problem 31A

Summary Introduction

Introduction :

Fertilization is just the beginning of a long phase that concludes finally with seed forming. A seed in anthophytes is part of a fruit that grows from the ovary, and also from other organs of the flower.

Answer to Problem 31A

Correct answer :

The correct answer is option (d) microspore

Explanation of Solution

Explanation/justification for the correct answer :

Option (d) microspore. Anther is the male reproductive part of anthophytes which contains specialized cells that undergoes meiotic division to form microspores. The microspore is formed into pollen grains. So, the correct answer is option (d).

Explanation for incorrect answer :

Option (a) egg. Megaspore is produced in the female gametophyte of anthophytes which undergoes mitotic division. The egg is developed from megaspores. So, this is an incorrect answer.

Option (b) embryo. After the fusion gametes, a zygote is formed which later develops into embryo. So, this is an incorrect answer.

Option (c) endosperm. Endosperm is the result of double fertilization which provides nutrition to the developing embryo. So, this is an incorrect answer.