DNA fingerprinting- paternity testing and forensics

Question 1

what is it

Answer 1

process where individuals can be identified and compared based on their DNA sequence or DNA profile

requires matching an unkown sample of DNA to a known sample of DNA to see if they match.

Question 2

what is RFLP (restriction fragment length polymorphism)

Answer 2

where organisms may be differentiated by analysis of patterns derived from cleavage of their DNA

Question 3

how do they know everyone’s DNA is unique

Answer 3

when a persons DNA is cut by RE, the length of the fragments will be different for everyone

Question 4

procedure

Answer 4

1. scientist amplify specific sequences from more than one dna sample (by PCR)
2. these amplified pieces are cut by RE
3. gel electrophoresis
   if patterns similar = related
   the less similar, the less related.