Question

In a fertilized ovule of an angiosperm, the cells in which n, 2n, and 3n conditions respectively occur are:

• A. antipodal, zygote, and endosperm
• B. zygote, nucellus, and endosperm
• C. endosperm, nucellus, and zygote
• D. antipodals, synergids, and integuments

Hint:

Double fertilization is a unique feature of angiosperms, resulting in the formation of both a zygote and triploid endosperm.

Answer 1

The Correct Option is A

n (haploid): Located in antipodal cells. 2n (diploid): Present in the zygote resulting from fertilization. 3n (triploid): Observed in the endosperm, a product of double fertilization. This pattern of ploidy levels is a defining characteristic of angiosperm reproduction.