MCQ
Which among the following DNA sample is used for DNA fingerprinting :
- ASemen on cloths
- BVaginal secretion
- CHair/dead men's hair
- ✓All of these
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

A drug used for ...$A$... patients is obtained from a species of the organism ...$B$.... It helps in clearing blood clots inside the blood vessels.
The one correct option for the two blanks are