Evolution

Evolution

Of or pertaining to the change in the genetic composition of a population during successive generations, as a result of natural selection acting on the genetic variation among individuals, and resulting in the development of new species.

Industry: Archaeology

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Evolution

macroevolution

Archaeology; Evolution

A vague term generally used to refer to evolution on a grand scale, or over long periods of time. There is no precise scientific definition for this term, but it is often used to refer to the ...

nucleotide

Archaeology; Evolution

A unit building block of DNA and RNA. A nucleotide consists of a sugar and phosphate backbone with a base attached.

transfer RNA (tRNA)

Archaeology; Evolution

A type of RNA that brings the amino acids to the ribosomes to make proteins. There are 20 kinds of transfer RNA molecules, one for each of the 20 main amino acids. A transfer RNA molecule has an ...

asexual reproduction

Archaeology; Evolution

A type of reproduction involving only one parent that ususally produces genetically identical offspring. Asexual reproduction occurs without fertilization or genetic recombination, and may occur by ...

codon

Archaeology; Evolution

A triplet of bases (or nucleotides) in the DNA coding for one amino acid. The relation between codons and amino acids is given by the genetic code. The triplet of bases that is complementary to a ...

Lennart Nilsson

Archaeology; Evolution

A Swedish photographer who began as a photojournalist, Nilsson soon began exploring new techniques such as the use of endoscopes and electron microscopes to photograph the inner mysteries of the ...

Pangaea

Archaeology; Evolution

A supercontinent which began to break apart into the modern continents about 260 million years ago, causing the isolation (and separate evolution) of various groups of organisms from each other.