Question

6. In angiosperms, endosperm is formed
by/ due to .....
a. Free nuclear divisions of megaspore
lar nuclei
c. polar nuclei and male gamete
d. synergids and male gamete
b.
p
7. Point out the odd one
a. Nucellus
b. Embryo sac
c. Micropyle d. Pollen grain​

Answer 1

Answer:

c) polar nucei and male gamete

Explanation:

Angiosperms have a unique phenomenon of "Double Fertilisation" in which, after the release of two male gametes inside the embryo sac by the pollen tube, one male gamete i.e. the first male gamete which is too near to egg fuses with egg nucleus and this phenomenon is known as fertilisation or syngamy. During syngamy, a zygote is formed. The other male gamete i.e. the second male gamete migrates towards the secondary nucleus (formed from the fusion of two polar nuclei) and fuses with it. This phenomenon is known as triple fusion and results in the formation of a triploid primary endosperm mother cell. Primary endosperm mother cell then undergoes further divisions to form endosperm.

Answer 2

Answer:

Explanation:-

      Answer for this question would be as follows:-

      Literally endosperm is a tissue that is produced inside the seeds of most of the flowering plants, which carry the process of fertilization.

  So, the answer according to the question would be;

  Most probably the option number (d)

   The answer for the second question would be the Option (A)