Learn about some human genetic disorders.

Provides an overview of the field of human genetics, how it began with Mendel's work, some basic genetic principles, how genetic disorders are transmitted, and how physical characteristics are inherited.

This ebook discusses the topic of human pedigree analysis, a type of genetic science used to determine inherited characteristics.

Find out about the chromosomal basis of sex determination, X and Y chromosomes, and X-linkage.

Find out about aneuploidy and nondisjunction, as they relate to down syndrome and other related disorders. Also learn about chromosomal rearrangements.

Homeotic genes control development of whole body segments or structures. When they are overactive or missing, weird things can happen!