
Originally Posted by
IRIDELOWSGIRL
All Except Three Condons Provide Codes For Amino Acids. These Three Codons Are Used As__________ Signals.
A. Speed-up
B. Stop
C.slow-down
D. Go
Please Help Me Answer This Im New At This Site!
I would have to go with STOP so B.
A gene is a string of codons that make up a recipe for a particular kind of protein.The nucleotides A(Adenine), T(Thymine), G(Guanine), and C(Cytosine) are the four-letter alphabet of genetic coding. A single nucleotide conveys no message. However, triplets do convey information. Any arrangement of three nucleotides, such as T-G-A or G-C-C, is called a triplet. Each triplet, or codon, is a recipe for a particular amino acid.