Genetics is the study of genes and heredity—how traits are passed from parents to children through DNA. A gene is a segment of DNA that contains instructions for building one or more molecules that help the body work. Researchers estimate that humans have about 20,000 genes, which account for about 1 percent of our DNA. The remainder of the DNA plays a role in regulating genes, and ...
Genetics is the study of genes, genetic variation, and heredity in organisms. [1][2][3] It is an important branch in biology because heredity is vital to organisms' evolution. Gregor Mendel, a Moravian Augustinian friar working in the 19th century in Brno, was the first to study genetics scientifically. Mendel studied "trait inheritance", patterns in the way traits are handed down from parents ...
Genetics, study of heredity in general and of genes in particular. Genetics forms one of the central pillars of biology and overlaps with many other areas, such as agriculture, medicine, and biotechnology. Learn more about the history, biology, areas of study, and methods of genetics.
Genetics Basics What to know This page provides information about basic genetic concepts such as DNA, genes, chromosomes, and gene expression. Genes play a role in almost every human trait and disease. Advances in our understanding of how genes work have led to improvements in health care and public health.
MedlinePlus Genetics provides information about the effects of genetic variation on human health. Learn about genetic conditions, genes, chromosomes, and more.
Genetics is published by the Genetics Society of America. The journal publishes empirical studies of organisms ranging from microbes to humans, as well as theoretical work.