Hi there!! (✿◕‿◕)
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In glucose the hydroxyl group at carbon four is below the plane of the ring. In galactose the hydroxyl group at carbon four is above the plane of the ring.
Hope this helped!! ٩(◕‿◕。)۶
Pretty sure it's 2. She dyed her hair red so that means she does not have the genes for red hair. If she did, it would be passed to her kids with sex cells