BIOL 311 Lecture Notes - Lecture 4: Y Chromosome, Dna Profiling, Variable Number Tandem Repeat
10 Dec 2017
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Document Summary
Ge n e tic va ria b ility. Locus : loca tion of a s ingle nucle otide or a s tre tch of ma ny nucle otide s a nywhe re on a chromos ome. Ge ne : coding locus cons is ting of a s pe cific dna s e que nce , producing e ithe r a prote in or functiona l rna. Anonymous locus : dna locus without a ny a ppa re nt function. A polymorphis m is whe n 2 or more diffe re nt dna s e que nce s e xis t a t a dna locus. Cha nge s in dna s e que nce a re known a s dna polymorphis ms. 3 type s of dna polymorphis ms : s ingle nucle otide p olymorphis m (s np , mos t common, re pla cing one nucle otide with a nothe r, two type s :
