2023 Sexual Reproduction in Flowering PlantsDouble Fertilisation Medium Question 1 of 8 in Double Fertilisation

In angiosperm, the haploid, diploid and triploid structures of a fertilized embryo sac sequentially are:

A Synergids, antipodals and Polar nuclei
B Synergids, Primary endosperm nucleus and zygote
C Antipodals, synergids, and primary endosperm nucleus
D Synergids, Zygote and Primary endosperm nucleus

The answer is D.

Solution

Synergids are haploid, the zygote is diploid, and the primary endosperm nucleus is triploid.

In angiosperms, the haploid, diploid and triploid structures of a fertilised embryo sac sequentially are: Synergids, Zygote and Primary endosperm nucleus.

Concept ploidy of embryo sac structures

Double Fertilisation in past papers

8 questions from this chapter have appeared across 7 exam years.