In Kohrana's Experiments, a Messenger RNA with the Sequence 5'-UUUUUU…

question 136

Essay

In Kohrana's experiments, a messenger RNA with the sequence 5'-UUUUUU… -3' coded for a polypeptide with the sequence Phe-Phe-Phe-Phe-…. (polyphenylalanine). Imagine that he added a single nucleotide bearing the base G to one end of the mRNA. The resulting polypeptide was polyphenylalanine with a single Leu at the carboxyl (-COOH) end. Did Kohrana add the G to the 5' or the 3' end of the mRNA?

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Definitions:

Current Ratio

A liquidity ratio that measures a company's ability to pay off its short-term liabilities with its short-term assets.

Acid-Test Ratio

A financial metric comparing a company's most liquid assets (excluding inventory) to its current liabilities, used to assess short-term solvency.

Marketable Securities

These are liquid financial instruments that can easily be converted into cash at their current value in the financial markets.

Selling And Administrative Expenses

Expenses related to the selling of products and the management of the business, not directly tied to manufacturing.