A Mutation Causes a G to Be Inserted After the First

question 4

Multiple Choice

A mutation causes a G to be inserted after the first base of the codon for tryptophan.How will this affect the growing polypeptide chain?

• A)It will not be affected.
• B)Elongation will stop prematurely.
• C)There will be a single amino acid substitution.
• D)The reading frame will be shifted to the left,and the wrong amino acids will be added from this point on.
• E)None of these

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Definitions:

Operating Leverage

A measure of how revenue growth translates into growth in operating income, indicating the degree to which a company can increase profits by increasing sales.

Break-even Sales

The amount of revenue needed to cover both the variable and fixed costs of a business, resulting in zero profit or loss.

Variable Cost

Costs that vary directly with the level of production or service delivery, such as raw materials and labor costs.

Fixed Costs

Costs that do not vary with the level of production or sales volume, remaining constant even as production levels change.