The "Universal" Genetic Code Is Now Known to Have Exceptions

question 46

Multiple Choice

The "universal" genetic code is now known to have exceptions.Evidence for this can be found if which of the following statements is true?

• A)if UGA,usually a stop codon,is found to code for an amino acid such as tryptophan (usually coded for by UGG only)
• B)if one stop codon,such as UGA,is found to have the same effect on translation as another stop codon,such as UAA
• C)if prokaryotic organisms are able to translate a eukaryotic mRNA and produce the same polypeptide
• D)if several codons are found to translate to the same amino acid,such as serine

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Definitions:

Opportunity Cost

The cost of what you have to give up in order to choose something else.

Output

The sum of all goods or services created by an enterprise, industry, or the economy over a certain period.

Economic Profits

The profit or loss calculated by taking out both straightforward and assumed expenses from total income.

Purely Competitive

A business environment marked by the proliferation of many small enterprises, a uniform product, and effortless procedures for both entry and exit.