AUU, AUC, and AUA All Encode Isoleucine, but AUA Is

question 28

Multiple Choice

AUU, AUC, and AUA all encode isoleucine, but AUA is used only ~10% of the time. Why is this thought to be the case?

• A) A and G are both purines
• B) U and C are both pyrimidines
• C) U and C are both purines
• D) A and G are both pyrimidines

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Definitions:

US Dollars

The official currency of the United States, widely used in international transactions.

International Bond

Any bond sold outside the country of the borrower. There are two types of international bonds: Eurobonds and foreign bonds.

Eurobonds

International bonds that are denominated in a currency not native to the country where it is issued, allowing investors and issuers to access global capital markets.

Foreign Bonds

Bonds issued in a domestic market by a foreign entity, in the currency of the domestic market, as a way for the issuer to raise capital.