Question

1. WHICH POLAR NUCLEI FUSE TO GIVE RISE TO ENDOSPERM?
A) POLAR NUCLEI
B) SYNERGIDS
C) ANTIPODAL CELL
D) MICROSPORE​

Answer 1

Answer:

Polar nuclei

Explanation:

One sperm nucleus fertilizes the egg cell, forming a zygote, while the other sperm nucleus usually fuses with the binucleate central cell, forming a primary endosperm cell (its nucleus is often called the triple fusion nucleus). That cell created in the process of double fertilization develops into the endosperm.

Answer 2

The polar nuclei fuse gives rise to the endosperm.

• Double fertilisation reflects the coexistent phenomenon of syngamy and the triple fusion.
• Syngamy naturally requires the successful merge of one male gamete with the zygote forming egg cells. Zygote, ultimately grows into a developed embryo, appropriately representing the direct product of syngamy.  
• The following M gamete merges along secondary nuclei or two polar nuclei, known as triple fusion, to better form the primary endosperm nuclei of a triploid type.
• In this proper manner, the primary endosperm nucleus typically grows into a nutritious tissue naturally called endosperm for embryo growth.