A study records the type of monomer present in samples of four naturally occurring polymers. One result is incorrect.
| Sample | Polymer | Type of monomer recorded |
|---|---|---|
| 1 | DNA | Nucleotide |
| 2 | Protein | Glucose |
| 3 | Starch | Glucose |
| 4 | Cellulose | Glucose |
Which sample has been recorded incorrectly?
Sample 1
Sample 4
Sample 3
Sample 2