#GTR MODEL OF DNA EVOLUTION ARCHIVE#

These four bases have different chemical structures, causing them to pair in this specific manner. Certain bases always pair together adenine always pairs with thymine and guanine always pairs with cytosine. A base from a nucleotide on one side of the ladder will chemically bond with a nucleotide from the other side, forming the rung. The phosphates and sugars form the sides of the ladder, while the bases form the rung. Each nucleotide consists of a phosphate, sugar, and base. The structure of DNA – a double helix – allows DNA to be copied successfully many times over with very few errors.ĭNA’s double helix (which looks like a twisted ladder) is made of units called nucleotides. DNA must be copied when new cells are formed, when genetic material is passed from parents to offspring, and when coding for RNA (ribonucleic acid) to make proteins. The most important function of DNA is its ability to replicate itself repeatedly. DNA contains genes, the building blocks of all organisms. Science, Religion, Evolution and Creationism: PrimerĭNA, or deoxyribonucleic acid, is a molecule found in the nuclei of cells.Members Thoughts on Science, Religion & Human Origins (video).

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#GTR MODEL OF DNA EVOLUTION ARCHIVE#

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Gtr model of dna evolution