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Endosperm is formed during the double fertilization by :
A
Two polar nuclei and one male gamete
B
One polar nucleus and one male gamete
C
Ovum and male gamete
D
Two polar nuclei and two male gametes
Detailed Solution
In double fertilisation, one male gamete fuses with the egg (syngamy) to form the diploid zygote.
The second male gamete fuses with the two polar nuclei (or the secondary nucleus) of the central cell. This is triple fusion, forming the triploid (3n) primary endosperm nucleus, which develops into the endosperm.
So endosperm is formed by two polar nuclei and one male gamete.
The second male gamete fuses with the two polar nuclei (or the secondary nucleus) of the central cell. This is triple fusion, forming the triploid (3n) primary endosperm nucleus, which develops into the endosperm.
So endosperm is formed by two polar nuclei and one male gamete.