Question:easy

Polygonum type embryo sac is categorized as _____ type.

Show Hint

Only one megaspore survives in this type.
Updated On: Jul 4, 2026
  • monosporic
  • bisporic
  • trisporic
  • tetrasporic
Show Solution

The Correct Option is A

Solution and Explanation

Step 1: After meiosis, a linear tetrad of four megaspores is formed. Depending on how many of them contribute nuclei to the mature embryo sac, we get monosporic, bisporic or tetrasporic development.
The Polygonum pattern keeps only the megaspore nearest the chalaza alive; the remaining three near the micropyle disintegrate. Three rounds of mitotic division in that single surviving cell give the typical 8-nucleate embryo sac.
Answer: Monosporic.
Was this answer helpful?
0

Top Questions on Embryology

Questions Asked in CPET exam