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:

Remember, the zygote is diploid (\(2n\)), while the endosperm is triploid (\(3n\)), specific to angiosperms.

Answer 1

The Correct Option is A

In angiosperms, cells exhibit \(n\), \(2n\), and \(3n\) ploidy levels: \(n\) (haploid): Antipodals, synergids, and egg cells. \(2n\) (diploid): Zygote, resulting from the fusion of one sperm cell and the egg. \(3n\) (triploid): Endosperm, formed by the fusion of the second sperm cell with two polar nuclei within the embryo sac.