Khan Academy
Khan Academy: Alleles and Genes
Learn about the gene as a stretch of DNA on a chromosome. Also find out about alleles as versions or sequence variants of a gene. [8:17]
Khan Academy
Khan Academy: Alleles and Genes
Understand how a gene is a stretch of DNA on a chromosome. Find out about alleles in their role as versions sequence variants of a gene. [8:18]
Khan Academy
Khan Academy: Alleles and Genes
A gene as a stretch of DNA on a chromosome. Alleles as versions (sequence variants) of a gene. [8:18]