There are 64 codons and 20 amino acids. which of the following is true? . a. several different codons can specify the same amino acid.. b. each codon specifies a different amino acid.. c. some amino acids have no link to a codon.. d. each amino acid is specified by only one codon..

3points hurry! what is the relationship between biotechnology, sharkskin, and disease resistance? bioengineers have developed an artificial sharkskin that does not allow resistant bacteria to grow on it. disease-causing microbes have been genetically modified to keep them from infecting the skins of sharks. scientists have created a device that can be attached to the skins of sharks that dramatically increases their abilities to resist disease. sharkskin produces many chemicals that can be collected and used to create antibiotics.