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Biochemistry

Field: Biochemistry

Sequence of Expressions

DNA from any cell of all organisms should have a 1:1 ratio (base Pair Rule) of pyrimidine and purine bases; specifically, the amount of guanine is equal to cytosine and the amount of adenine is equal to thymine.
The movement of ions across a semipermeable membrane, down their electrochemical gradient, generates ATP.
The native structure of a small globular protein is determined only by the protein's amino acid sequence.
It would take an astronomical amount of time for a protein to find its folded state by a random search, implying a directed folding pathway.