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Question: Answered & Verified by Expert
In the fully organized Polygonum type of embryo sac, what is the ratio of haploid, diploid and triploid nuclei?
BiologySexual Reproduction in Flowering PlantsNEET
Options:
  • A 3 : 1 : 3
  • B 6 : 0 : 1
  • C 6 : 1 : 0
  • D 3 : 2 : 3
Solution:
1050 Upvotes Verified Answer
The correct answer is: 6 : 1 : 0
A fully organised Polygonum type of embryo sac in a 7-celled, 8-nucleate structure. The cells of egg appratus and antipodal are haploid, whereas the central cell is diploid, i.e., contains two polar nuclei. Triploid endosperm is formed after triple fusion, i.e, fusion of second male gamete with polar nuclei.

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