Question

Fertilization in plant is called double fertilization
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Answer 1

Double fertilisation is a process unique to Angiosperms. After the release of two male gametes by the pollen tube, in the embryo sac, one male gamete which is near the egg fuses with the egg nucleus and this called syngamy which results in the formation of a zygote. The other male gamete fuses with the secondary nucleus and this is called triple fusion which results in the formation of a triploid primary endosperm mother cell. This simultaneous occurrence of syngamy and triple fusion in the embryo sac is called double fertilisation

Answer 2

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• ɪɴ ᴀɴɢɪᴏsᴘᴇʀᴍs, ᴏɴᴇ sᴘᴇʀᴍ ғᴇʀᴛɪʟɪᴢᴇs ᴛʜᴇ ᴇɢɢ ᴛᴏ ғᴏʀᴍ ᴛʜᴇ 2ɴ ᴢʏɢᴏᴛᴇ, ᴡʜɪʟᴇ ᴛʜᴇ ᴏᴛʜᴇʀ sᴘᴇʀᴍ ғᴜsᴇs ᴡɪᴛʜ ᴛᴡᴏ ᴘᴏʟᴀʀ ɴᴜᴄʟᴇɪ ᴛᴏ ғᴏʀᴍ ᴛʜᴇ 3ɴ ᴇɴᴅᴏsᴘᴇʀᴍ.
• ᴛʜɪs ɪs ᴄᴀʟʟᴇᴅ ᴀ ᴅᴏᴜʙʟᴇ ғᴇʀᴛɪʟɪᴢᴀᴛɪᴏɴ.
• ᴀғᴛᴇʀ ғᴇʀᴛɪʟɪᴢᴀᴛɪᴏɴ, ᴇᴍʙʀʏᴏɴɪᴄ ᴅᴇᴠᴇʟᴏᴘᴍᴇɴᴛ ʙᴇɢɪɴs.