genomic mutation
11Muller's ratchet — Illustration of chromosome crossover during genetic recombination In evolutionary genetics, Muller s ratchet (named after Hermann Joseph Muller, by analogy with a ratchet mechanism) is the process by which the genomes of an asexual population… …
12heredity — /heuh red i tee/, n., pl. heredities. Biol. 1. the transmission of genetic characters from parents to offspring: it is dependent upon the segregation and recombination of genes during meiosis and fertilization and results in the genesis of a new… …
13Carcinogenesis — For the scientific journal, see Carcinogenesis (journal). Cancers are caused by a series of mutations. Each mutation alters the behavior of the cell somewhat. Carcinogenesis or oncogenesis is literally the creation of cancer. It is a process by… …
14Epigenetics — In biology, the term epigenetics refers to changes in gene expression caused by mechanisms other than changes in the underlying DNA sequence. These changes may remain through cell divisions for the remainder of the cell s life and may also last… …
15Microsatellite (genetics) — This article is about the DNA sequence. For small orbiting spacecraft, see Miniaturized satellite. Microsatellites, also known as Simple Sequence Repeats (SSRs) or short tandem repeats (STRs), are repeating sequences of 2 6 base pairs of DNA.[1]… …
16GENETIC ANCESTRY, JEWISH — Background The human genome refers to approximately three billion chemical letters (nucleotides) comprising the sequence of deoxyribonucleic acid (DNA) in almost every cell of each human being. There are four different nucleotides (adenine,… …
17Heritability of autism — Autism has a strong genetic basis, although the genetics of autism is complex and it is unclear whether ASD is explained more by multigene interactions or by rare mutations with major effects. [cite journal |journal= Nat Rev Genet |year=2008… …
18recombinant DNA technology — Genetics. any of various techniques for separating and recombining segments of DNA or genes, often employing a restriction enzyme to cut a gene from a donor organism and inserting it into a plasmid or viral DNA for transplantation into a host… …
19Gene duplication — Schematic of a region of a chromosome before and after a duplication event Gene duplication (or chromosomal duplication or gene amplification) is any duplication of a region of DNA that contains a gene; it may occur as an error in homologous… …
20Mutationism — (sometimes, “Mendelism”) refers to the theory emphasizing mutation as a creative principle and source of discontinuity in evolutionary change, particularly associated with the founders of modern genetics. Contents 1 The discovery of genetics… …
