Identify the substances among the following that contain both glycosidic and peptide bonds in their structure.

Which of the following statements is incorrect?

Select the correct match for $X$ and $Y$:

Column $X$	Column $Y$
$(1)$ Skin color	$(P)$ Immunoglobulin
$(2)$ Immunity	$(Q)$ $Mg^{+2}$ containing protein
$(3)$ Movement	$(R)$ Melanin
$(4)$ Exoskeleton	$(S)$ Protein with four heme groups
$(5)$ Photosynthesis	$(T)$ Keratin
$(6)$ Transport of respiratory gases	$(U)$ Globular protein

Vitamin-$C$ is known as ......

Assertion : Scurvy is caused by deficiency of vitamin.
Reason : Deficiency of ascorbic acid causes scurvy.

Given below are two statements:
Statement $I$: $A$ protein is imagined as a line,the left end represented by the first amino acid ($N$-terminal) and the right end represented by the last amino acid ($C$-terminal).
Statement $II$: Adult human haemoglobin consists of $4$ subunits (two subunits of $\alpha$ type and two subunits of $\beta$ type).
In the light of the above statements,choose the correct answer from the options given below: