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

question 14

Multiple Choice

The "universal" genetic code is now known to have exceptions. Evidence for this can be found if which of the following 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) in a different organism
• B) if one stop codon, such as UGA, is found to have a different effect on translation than 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
• E) if a single mRNA molecule is found to translate to more than one polypeptide when there are two or more AUG sites

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Definitions:

Lacto-Ovo-Vegetarians

Individuals who avoid meat, fish, and poultry but consume dairy products and eggs.

Dairy Products

Foods produced from the milk of mammals, such as cheese, yogurt, and butter, which are sources of nutrients like calcium, vitamin D, and protein.

Plant Foods

Foods derived from plants, including vegetables, fruits, grains, seeds, and nuts, known for their health-promoting nutrients and fiber.

Nutritional Choices

Refers to the selection of foods and beverages that provide necessary nutrients for maintenance of health and well-being.