I am confident that when the facts and policies have been examined, when the record of performances have been reviewed, Barack Obama and Joe Biden will once again be elected to lead our beloved country to a better future. ↗
A final proof of our ideas can only be obtained by detailed studies on the alterations produced in the amino acid sequence of a protein by mutations of the type discussed here. ↗
It now seems certain that the amino acid sequence of any protein is determined by the sequence of bases in some region of a particular nucleic acid molecule. ↗
The balance of evidence both from the cell-free system and from the study of mutation, suggests that this does not occur at random, and that triplets coding the same amino acid may well be rather similar. ↗