What is a gene?
Genes vs. DNA vs. Chromosomes - Instant Egghead #19
What is DNA and Genes?
Alleles and genes
Alleles and Genes
Does Everybody Have A Gay Gene?
Is there a gene for language?
World Science Festival
What is DNA and How Does it Work?
Genes, DNA and Chromosomes explained
What Is The X-GENE? - Science Behind Superheroes
KLyfe - Science Behind Superheroes