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:

The process of double fertilization in angiosperms ensures the formation of both a diploid zygote and a triploid endosperm for nourishment.

Answer 1

The Correct Option is A

In a fertilized ovule of an angiosperm: 
n (haploid): Found in antipodal cells. 
2n (diploid): Found in the zygote formed by fertilization. 
3n (triploid): Found in the endosperm formed by double fertilization. This distribution of ploidy levels is characteristic of the angiosperm reproductive process.