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| Column $X$ | Column $Y$ |
| $(1)$ Actin | $(P)$ Transport of respiratory gases |
| $(2)$ Immunoglobulin | $(Q)$ Immunity |
| $(3)$ Melanin | $(R)$ Gives color to the body |
| $(4)$ Hemoglobin | $(S)$ Muscle movement |
| Column-$I$ (Polymer) | Column-$II$ (Bond Name) |
|---|---|
| $P$. Polysaccharide | $I$. Ester bond |
| $Q$. Protein | $II$. Peptide bond |
| $R$. Polynucleotide | $III$. Glycosidic bond |
| $S$. Triglyceride | $IV$. Phosphodiester bond |
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