21.5 genetic fingerprinting Flashcards
1
Q
what are VNTRs short for?
A
variable number tandem repeats
2
Q
what are VNTRs?
A
non- coding bases that are individual in number and length
3
Q
what are so special about VNTRs?
A
they are unique to everyone
4
Q
what is gel electrophoresis?
A
process where VNTRs are separated according to their size
5
Q
the further a DNA fragment has moved…?
A
the shorter that fragment is
6
Q
describe the process of genetic fingerprinting
A
- DNA is cut
- using restriction endonuclease
- use gel electrophoresis
- separates according to mass
- transfer to nylon membrane
- make single stranded
- apply probe
- radioactive/ fluorescent
- VNTRs patter is unique
- autoradiography
7
Q
what does it mean if the genetic fingerprinting results are similar?
A
the people tested are closely related
8
Q
what can genetic fingerprinting be used for?
A
- paternity testing
- forensic science
- animal breeding
- medical diagnosis
