Protein synthesis worksheet key, explore by interests
There are 20 known amino acids, but 64 possible base combinations.
This means that there has to be more than one codon for each amino acid. Support your answer with evidence. This make a possible 64 base combinations.
For example, the amino acid leucine can be coded for by the codon CUU. The codon molecule is a piece of mRNA that enters the nucleus and transcribes the sequence of nitrogen bases from the DNA strand.
There are four nitrogen bases and three bases in each codon.
The site at which transcription begins on the DNA strand is called the promoter site. If there are only 20 known amino acids, why are there so many possible combinations?
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