Gene and Allele, Locked Terms
This video presents the same text shown beside it, spoken and on screen. It adds nothing the text does not say.
State
A gene is a DNA segment at a fixed location coding for a protein; an allele is one version of its sequence, and this course fixes both terms accordingly.
Show
Blood type is set by one gene with three alleles — A, B, and O.
Watch for
A gene names the location; an allele names one sequence found there.