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Explain why the Mendelian inheritance does not apply to the inheritance of alleles in individuals with Tay Sachs disease.

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ɪɴᴄᴏᴍᴘʟᴇᴛᴇ ᴅᴏᴍɪɴᴀɴᴄᴇ ᴏᴄᴄᴜʀꜱ ᴡʜᴇɴ ᴛʜᴇ ᴘʜᴇɴᴏᴛʏᴘᴇ ᴏꜰ ᴀ ʜᴇᴛᴇʀᴏᴢʏɢᴏᴛᴇ ᴏꜰꜰꜱᴘʀɪɴɢ ɪꜱ ꜱᴏᴍᴇᴡʜᴇʀᴇ ɪɴ ʙᴇᴛᴡᴇᴇɴ ᴛʜᴇ ᴘʜᴇɴᴏᴛʏᴘᴇꜱ ᴏꜰ ʙᴏᴛʜ ʜᴏᴍᴏᴢʏɢᴏᴜꜱ ᴘᴀʀᴇɴᴛꜱ; ᴀ ᴄᴏᴍᴘʟᴇᴛᴇʟʏ ᴅᴏᴍɪɴᴀɴᴛ ᴀʟʟᴇʟᴇ ᴅᴏᴇꜱ ɴᴏᴛ ᴏᴄᴄᴜʀ.

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