Cells That Use the Amino Acids Selenocysteine and Pyrrolysine Have

question 20

Multiple Choice

Cells that use the amino acids selenocysteine and pyrrolysine have

• A)two more codons compared to other cells.
• B)two more tRNAs compared to other cells.
• C)two more aminoacyl-tRNA synthetases compared to other cells.
• D)two more tRNAs and aminoacyl-tRNA syntheses compared to other cells.
• E)inosine at the third position of their tRNA anticodons to accommodate these amino acids.

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Definitions:

Break-even

The point at which total costs and total revenues are equal, meaning that there is no net loss or gain.

Unit Sales

The quantity of product units sold by a business during a specific period, often used to gauge performance.

Selling Price

The amount a buyer pays to acquire a product or service, potentially including discounts, allowances, and added taxes.

Fixed Expense

Costs that do not change with the level of production or business activity, such as rent or salaries.