MeSH

The process of cumulative change over successive generations through which organisms acquire their distinguishing morphological and physiological characteristics.

Year introduced: 2011 (1989)

The process of accumulation of genetic and epigenetic changes over time in individual cells and the effect of the changes on CELL PROLIFERATION.

Year introduced: 2012

Creation and development of bodies within solar systems, includes study of early planetary geology.

Year introduced: 1997

Chemical and physical transformation of the biogenic elements from their nucleosynthesis in stars to their incorporation and subsequent modification in planetary bodies and terrestrial biochemistry. It includes the mechanism of incorporation of biogenic elements into complex molecules and molecular systems, leading up to the origin of life.

Year introduced: 1997

The process of cumulative change at the level of DNA; RNA; and PROTEINS, over successive generations.

Year introduced: 1996

The techniques used to produce molecules exhibiting properties that conform to the demands of the experimenter. These techniques combine methods of generating structural changes with methods of selection. They are also used to examine proposed mechanisms of evolution under in vitro selection conditions.

Year introduced: 1996

The continuous developmental process of a culture from simple to complex forms and from homogeneous to heterogeneous qualities.

Year introduced: 1991(1978)

The fluctuation of the ALLELE FREQUENCY from one generation to the next.

Year introduced: 2003

A method of generating a large library of randomized nucleotides and selecting NUCLEOTIDE APTAMERS by iterative rounds of in vitro selection. A modified procedure substitutes AMINO ACIDS in place of NUCLEOTIDES to make PEPTIDE APTAMERS.

Year introduced: 2006