NEET 2023
- Exam
- NEET
- Year
- 2023
- Subject
- Botany
- Chapter
- Sexual Reproduction in Flowering Plants
NEET 2023 · Botany · Sexual Reproduction in Flowering Plants
In angiosperm, the haploid, diploid and triploid structures of a...
In angiosperm, the haploid, diploid and triploid structures of a fertilized embryo sac sequentially are:
Options
- ASynergids, antipodals and Polar nuclei
- BSynergids, Primary endosperm nucleus and zygote
- CAntipodals, synergids, and primary endosperm nucleus
- DSynergids, Zygote and Primary endosperm nucleus
Correct answer
D. Synergids, Zygote and Primary endosperm nucleus
Step-by-step solution
Synergids are pairs of haploid cells present at the micropylar end of embryo sac. Zygote which is a diploid structure undergoes divisions to form an embryo. Antipodal and polar nuclei are also haploid in nature. Primary endosperm nucleus is triploid in nature. In a fertilized embryo sac the haploid, diploid and triploid structures are synergid, zygote and primary endosperm respectively.