Mutation - Wikipedia
Conditional mutation is a mutation that has wild-type (or less severe) phenotype under certain "permissive" environmental conditions and a mutant phenotype under certain "restrictive" conditions. For example, a temperature-sensitive mutation can cause cell death at high temperature ...
What is a mutation? | Facts | yourgenome.org
A mutation is a change that occurs in our DNA sequence, either due to mistakes when the DNA is copied or as the result of environmental factors such as UV light and cigarette smoke. DNA or deoxyribonucleic acid is a long molecule that contains our unique genetic code. Like a recipe book it holds the ...
Mutation | Define Mutation at Dictionary.com
A change in the structure of the genes or chromosomes of an organism. Mutations occurring in the reproductive cells, such as an egg or sperm, can be passed from one generation to the next.
What is a gene mutation and how do mutations occur ...
A gene mutation is a permanent alteration in the DNA sequence that makes up a gene, such that the sequence differs from what is found in most people. Mutations range in size; they can affect anywhere from a single DNA building block (base pair) to a large segment of a chromosome that includes ...
Mutation | Definition of Mutation by Merriam-Webster
The cat's short tail is the result of mutation. The condition is caused by a genetic mutation. The cat's short tail is the result of a mutation. The building is a mutation of the original design.
What is Mutation? - Learn.Genetics
Mutation creates variations in protein-coding portions of genes that can affect the protein itself. But even more often, it creates variations in the "switches" that control when and where a protein is active and how much protein is made.
Mutation | definition of Mutation by Medical dictionary
mutation [mu-ta´shun] 1. a permanent transmissible change in the genetic material. 2. an individual exhibiting such a change. point mutation a mutation resulting from a change in a single base pair in the DNA molecule. somatic mutation a genetic mutation occurring in a somatic cell, providing the basis for mosaicism. suppressor mutation the correction ...
Mutation - definition of mutation by The Free Dictionary
mutation - (genetics) any event that changes genetic structure; any alteration in the inherited nucleic acid sequence of the genotype of an organism chromosomal mutation , genetic mutation genetic science , genetics - the branch of biology that studies heredity and variation in organisms
Mutation | genetics | Britannica.com
Mutation, an alteration in the genetic material (the genome) of a cell of a living organism or of a virus that is more or less permanent and that can be transmitted to the cell’s or the virus’s descendants.
Mutation - Lab Tests Online
Change in the genetic structure (DNA); it may occur spontaneously or be induced (e.g., by radiation, drugs, or certain mutagenic chemicals).