Question

How are twins formed?

Answer 1

To form twins, ovum splits and develops into two babies with exactly the same genetic information.

Answer 2

◆TWINS◆

ғᴀᴄᴛᴏʀs ᴛʜᴀᴛ ɪɴᴄʀᴇᴀsᴇ ᴛʜᴇ ᴏᴅᴅs ᴏғ ʜᴀᴠɪɴɢ ᴛᴡɪɴs

ғᴇʀᴛɪʟɪsᴀᴛɪᴏɴ

ɪᴅᴇɴᴛɪᴄᴀʟ ᴏʀ ‘ᴍᴏɴᴏᴢʏɢᴏᴛɪᴄ’ ᴛᴡɪɴs

ғʀᴀᴛᴇʀɴᴀʟ ᴏʀ ‘ᴅɪᴢʏɢᴏᴛɪᴄ’ ᴛᴡɪɴs

ᴛʜᴇ ᴘʀᴏᴘᴏsᴇᴅ ‘ᴛʜɪʀᴅ-ᴛᴡɪɴ ᴛʏᴘᴇ’

ɢᴇsᴛᴀᴛɪᴏɴ ғᴏʀ ᴛᴡɪɴs

ɢɪᴠɪɴɢ ʙɪʀᴛʜ ᴛᴏ ᴛᴡɪɴs

ᴢʏɢᴏsɪᴛʏ ᴛᴇsᴛɪɴɢ

ᴡʜᴇʀᴇ ᴛᴏ ɢᴇᴛ ʜᴇʟᴘ

ᴛʜɪɴɢs ᴛᴏ ʀᴇᴍᴇᴍʙᴇʀ

ᴍᴜʟᴛɪᴘʟᴇ ʙɪʀᴛʜs ᴀʀᴇ ᴍᴏʀᴇ ᴄᴏᴍᴍᴏɴ ᴛʜᴀɴ ᴛʜᴇʏ ᴡᴇʀᴇ ɪɴ ᴛʜᴇ ᴘᴀsᴛ, ᴅᴜᴇ ᴛᴏ ᴛʜᴇ ᴀᴅᴠᴀɴᴄɪɴɢ ᴀᴠᴇʀᴀɢᴇ ᴀɢᴇ ᴏғ ᴍᴏᴛʜᴇʀs ᴀɴᴅ ᴛʜᴇ ᴀssᴏᴄɪᴀᴛᴇᴅ ʀɪsᴇ ɪɴ ᴀssɪsᴛᴇᴅ ʀᴇᴘʀᴏᴅᴜᴄᴛɪᴠᴇ ᴛᴇᴄʜɴɪǫᴜᴇs, ɪɴ ᴘᴀʀᴛɪᴄᴜʟᴀʀ ᴛʜᴇ ᴜsᴇ ᴏғ ғᴇʀᴛɪʟɪᴛʏ ᴅʀᴜɢs. ᴛᴡɪɴs ᴀᴄᴄᴏᴜɴᴛ ғᴏʀ ᴏᴠᴇʀ 90 ᴘᴇʀ ᴄᴇɴᴛ ᴏғ ᴍᴜʟᴛɪᴘʟᴇ ʙɪʀᴛʜs. ᴛʜᴇʀᴇ ᴀʀᴇ ᴛᴡᴏ ᴛʏᴘᴇs ᴏғ ᴛᴡɪɴs – ɪᴅᴇɴᴛɪᴄᴀʟ (ᴍᴏɴᴏᴢʏɢᴏᴛɪᴄ) ᴀɴᴅ ғʀᴀᴛᴇʀɴᴀʟ (ᴅɪᴢʏɢᴏᴛɪᴄ).

ᴛᴏ ғᴏʀᴍ ɪᴅᴇɴᴛɪᴄᴀʟ ᴛᴡɪɴs, ᴏɴᴇ ғᴇʀᴛɪʟɪsᴇᴅ ᴇɢɢ (ᴏᴠᴜᴍ) sᴘʟɪᴛs ᴀɴᴅ ᴅᴇᴠᴇʟᴏᴘs ᴛᴡᴏ ʙᴀʙɪᴇs ᴡɪᴛʜ ᴇxᴀᴄᴛʟʏ ᴛʜᴇ sᴀᴍᴇ ɢᴇɴᴇᴛɪᴄ ɪɴғᴏʀᴍᴀᴛɪᴏɴ. ᴛʜɪs ᴅɪғғᴇʀs ғʀᴏᴍ ғʀᴀᴛᴇʀɴᴀʟ ᴛᴡɪɴs, ᴡʜᴇʀᴇ ᴛᴡᴏ ᴇɢɢs (ᴏᴠᴀ) ᴀʀᴇ ғᴇʀᴛɪʟɪsᴇᴅ ʙʏ ᴛᴡᴏ sᴘᴇʀᴍ ᴀɴᴅ ᴘʀᴏᴅᴜᴄᴇ ᴛᴡᴏ ɢᴇɴᴇᴛɪᴄᴀʟʟʏ ᴜɴɪǫᴜᴇ ᴄʜɪʟᴅʀᴇɴ, ᴡʜᴏ ᴀʀᴇ ɴᴏ ᴍᴏʀᴇ ᴀʟɪᴋᴇ ᴛʜᴀɴ ɪɴᴅɪᴠɪᴅᴜᴀʟ sɪʙʟɪɴɢs ʙᴏʀɴ ᴀᴛ ᴅɪғғᴇʀᴇɴᴛ ᴛɪᴍᴇs. ᴛᴡɪɴs ᴀʀᴇ ᴍᴏʀᴇ ᴏʀ ʟᴇss ᴇǫᴜᴀʟʟʏ ʟɪᴋᴇʟʏ ᴛᴏ ʙᴇ ғᴇᴍᴀʟᴇ ᴏʀ ᴍᴀʟᴇ. ᴄᴏɴᴛʀᴀʀʏ ᴛᴏ ᴘᴏᴘᴜʟᴀʀ ʙᴇʟɪᴇғ, ᴛʜᴇ ɪɴᴄɪᴅᴇɴᴄᴇ ᴏғ ᴛᴡɪɴs ᴅᴏᴇsɴ’ᴛ sᴋɪᴘ ɢᴇɴᴇʀᴀᴛɪᴏɴs.

◆VERIFIED√