Question

During oogenesis, the total non-disjunction of chromosomes occurs in???​

Answer 1

$❥ᴀ᭄ɴsᴡᴇʀ$

ɪɴ ᴏᴏᴄʏᴛᴇꜱ, ᴏɴᴇ ꜱɪꜱᴛᴇʀ ᴄʜʀᴏᴍᴀᴛɪᴅ ɪꜱ ꜱᴇɢʀᴇɢᴀᴛᴇᴅ ɪɴᴛᴏ ᴛʜᴇ ꜱᴇᴄᴏɴᴅ ᴘᴏʟᴀʀ ʙᴏᴅʏ, ᴡʜɪʟᴇ ᴛʜᴇ ᴏᴛʜᴇʀ ꜱᴛᴀʏꜱ ɪɴꜱɪᴅᴇ ᴛʜᴇ ᴇɢɢ. ᴅᴜʀɪɴɢ ꜱᴘᴇʀᴍᴀᴛᴏɢᴇɴᴇꜱɪꜱ, ᴇᴀᴄʜ ᴍᴇɪᴏᴛɪᴄ ᴅɪᴠɪꜱɪᴏɴ ɪꜱ ꜱʏᴍᴍᴇᴛʀɪᴄ ꜱᴜᴄʜ ᴛʜᴀᴛ ᴇᴀᴄʜ ᴘʀɪᴍᴀʀʏ ꜱᴘᴇʀᴍᴀᴛᴏᴄʏᴛᴇ ɢɪᴠᴇꜱ ʀɪꜱᴇ ᴛᴏ 2 ꜱᴇᴄᴏɴᴅᴀʀʏ ꜱᴘᴇʀᴍᴀᴛᴏᴄʏᴛᴇꜱ ᴀꜰᴛᴇʀ ᴍᴇɪᴏꜱɪꜱ ɪ, ᴀɴᴅ ᴇᴠᴇɴᴛᴜᴀʟʟʏ 4 ꜱᴘᴇʀᴍᴀᴛɪᴅꜱ ᴀꜰᴛᴇʀ ᴍᴇɪᴏꜱɪꜱ ɪɪ.

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ʜᴏᴘᴇ ɪᴛ ʜᴇʟᴘꜱ ʏᴏᴜ! ✨

ᴍᴀʀᴋ ɪᴛ ᴀꜱ ʙʀɪʟʟɪᴀɴᴛ ᴀɴꜱᴡᴇʀ! ☃️

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$❥ᴛʜᴀ᭄ɴᴋs$

Answer 2

Answer:

$hello \: sister$

Explanation:

❥ᴀ᭄ɴsᴡᴇʀ

During anaphase, sister chromatids (or homologous chromosomes for meiosis I), will separate and move to opposite poles of the cell, pulled by microtubules. In nondisjunction, the separation fails to occur causing both sister chromatids or homologous chromosomes to be pulled to one pole of the cell.