alleles and loci Flashcards
1
Q
locus
A
a specific location on a chromosome
2
Q
allele
A
describes specific region of DNA that varies between people at each locus = 2 alleles
can be homo or hetero
3
Q
analytic ladder
A
made up of DNA fragments that represent common alleles
uses an internal size standard (ISS) so can be used for comparison
4
Q
RFLP - restriction fragment length polymorphisms
A
1st gen tests
blood stain size of 50p piece needed
profile in a few months
5
Q
DQ -Alpha
A
2nd gen tests
stains too small to see will work
profile in half a day
