1.

The linkage between the two monosaccharide units in lactose is

Answer»

`C_(1)`of `BETA`-D-glucose and `C_(4)` of `beta`-D-glactose
`C_(1)` of `beta`-D-galactose and `C_(4)` of `beta-`D-glucose
`C_(1)` of `alpha`-D-galactose and `C_(4)`of `beta`-D-glucose
`C_(1)` of `beta`-D-glactose and `C_(4)` of `alpha`-D-glucose

Solution :Lactose is obtained by the condensation of one molecule of `beta`-D-glactopyranose (`C_(1)-beta)` unit and one molecule of `beta`-D-glycopyranose `(C_(4)-beta)` units.


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