Genes : a very short introduction / Jonathan Slack.

"In this Very Short Introduction, Jonathan Slack looks at the concept of the gene, exploring the discovery, nature, and role of genes in both evolution and development. He considers genetic mutations and disease, and looks at genetic heritability, from height to the controversial topic of intelligence. Explaining the nature of genetic variation in human populations, he highlights how genes can be used to trace human ancestry and ancient migrations."--From jacket.