- A mutant form of a gene that, in the homozygous state, is fatal.
Glossary of Biotechnology for Food and Agriculture . 2015.
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Lethal white syndrome — (LWS), also called overo lethal white syndrome (OLWS), lethal white overo (LWO), and overo lethal white foal syndrome (OLWFS), is an autosomal genetic disorder most prevalent in the American Paint Horse. Affected foals are born after the full 11… … Wikipedia
Lethal alleles — Alleles that cause an organism to die are called lethal alleles, where the gene involved is an essential gene. When Mendel s Laws were rediscovered, geneticists believed that mutants would only alter the appearance of a living organism. However,… … Wikipedia
lethal gene — See: lethal allele … Glossary of Biotechnology
lethal mutation — See: lethal allele … Glossary of Biotechnology
lethal gene — n a gene that in some (as homozygous) conditions may prevent development or cause the death of an organism or its germ cells called also lethal factor, lethal mutant, lethal mutation * * * a gene that, under certain conditions, causes the death… … Medical dictionary
lethal gene — a gene that, under certain conditions, causes the death of the individual carrying it. Lethal genes are usually recessive: an individual will die only if both his parents carry the gene. If only one parent is affected, the lethal effects of the… … The new mediacal dictionary
balanced lethal system — A system for maintaining a recessive lethal allele at each of two loci on the same pair of chromosomes. In a closed population with no crossing over between the loci, only the double heterozygotes for the lethal mutations survive … Glossary of Biotechnology
evolution — evolutional, adj. evolutionally, adv. /ev euh looh sheuhn/ or, esp. Brit., /ee veuh /, n. 1. any process of formation or growth; development: the evolution of a language; the evolution of the airplane. 2. a product of such development; something… … Universalium
Araucana — The Araucana, also known as a South American Rumpless,Stanford, Phil. (August 24, 1990) The Oregonian Now here s something to crow about. Section: Local stories, Page D1.] is a breed of chicken originating in Chile. The Araucana is often confused … Wikipedia
Dominant white — This dominant white Thoroughbred stallion (W2/+) has one form of dominant white. His skin, hooves, and coat lack pigment cells, giving him a pink skinned white coat. Dominant white is a group of genetically related coat color conditions in the… … Wikipedia