List of top Forensic Science Questions on Fingerprint Examination asked in CUET (PG)

Which of the following biomolecule reacts with ninhydrin in development of latent prints ?
Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): Every finger contains ridge detail which is unique to that finger and no other.
Reason (R): Loop patterns account for 60 to 65 percent of fingerprint patterns.
In the light of the above statements, choose the most appropriate answer from the options given below:
Which chemical is most commonly used for the development of latent fingerprints on porous surfaces like paper?