Evolution of sexual reproduction — The evolution of sexual reproduction is currently described by several competing scientific hypotheses. All sexually reproducing organisms derive from a common ancestor which was a single celled eukaryotic species[1]. Many protists reproduce… … Wikipedia
heredity — /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… … Universalium
Natural selection — For other uses, see Natural Selection (disambiguation). Part of a series on Evolutionary Biology … Wikipedia
History of molecular evolution — The history of molecular evolution starts in the early 20th century with comparative biochemistry , but the field of molecular evolution came into its own in the 1960s and 1970s, following the rise of molecular biology. The advent of protein… … Wikipedia
Nearly neutral theory of molecular evolution — The nearly neutral theory of molecular evolution is a modification of the neutral theory of molecular evolution that accounts for slightly advantageous or deleterious mutations at the molecular level. The nearly neutral theory was proposed by… … Wikipedia
Senescence — refers to the biological processes of a living organism approaching an advanced age (i.e., the combination of processes of deterioration which follow the period of development of an organism). The word senescence is derived from the Latin word… … Wikipedia
Conservation genetics — For molecular conservation in genetics see: conservation (genetics). For the scientific journal Conservation Genetics, see Conservation Genetics (journal). Part of a series on Genetics Key components Chromosome DNA& … Wikipedia
Neutral theory of molecular evolution — The neutral theory of molecular evolution states that the vast majority of evolutionary changes at the molecular level are caused by random drift of selectively neutral mutants (not affecting fitness).[1] The theory was introduced by Motoo Kimura … Wikipedia
Genetic hitchhiking — is the process by which an evolutionarily neutral or in some cases deleterious allele or mutation may spread through the gene pool by virtue of being linked to a beneficial mutation. More generally, genetic hitchhiking can refer to the process by … Wikipedia
Mutational meltdown — refers to the process by which a small population accumulates harmful mutations, which leads to loss of fitness and decline of the population size, which may lead to further accumulation of deleterious mutations due to inbreeding depression. A… … Wikipedia
Molecular evolution — Part of a series on Evolutionary Biology … Wikipedia
