Question

For ‘DNA fingerprinting’ to associate a blood sample with the criminal, what is minimally required?

Options

• One sample of DNA, PCR amplification, restriction enzymes, and gel electrophoresis

• One sample of DNA, restriction enzymes, a DNA synthesizer, and gel electrophoresis

• Two samples of DNA, PCR amplification, restriction enzymes, and gel electrophoresis

• Two samples of DNA, PCR amplification, restriction enzymes, and a DNA synthesizer

Answer 1

Two samples of DNA, PCR amplification, restriction enzymes, and gel electrophoresis

Explanation:

DNA fingerprinting to associate a blood sample with a criminal requires comparing two DNA samples: one from the crime scene (blood sample) and another from the suspect. The process involves PCR amplification to make millions of copies of specific DNA segments, use of restriction enzymes to cut DNA at specific sequences, and gel electrophoresis to separate the resulting DNA fragments.