A Researcher Found a Method She Could Use to Manipulate

question 65

Multiple Choice

A researcher found a method she could use to manipulate and quantify phosphorylation and methylation in embryonic cells in culture.
-In one set of experiments using this procedure in Drosophila, she was readily successful in increasing phosphorylation of amino acids adjacent to methylated amino acids in histone tails. Which of the following results would she most likely see?

• A) increased chromatin condensation
• B) decreased chromatin condensation
• C) abnormalities of mouse embryos
• D) decreased binding of transcription factors
• E) inactivation of the selected genes

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Definitions:

Capital Expenditure

Funds used by a company to acquire, upgrade, and maintain physical assets such as property, industrial buildings, or equipment to improve its long-term operations.

Net Present Value

A calculation that compares the present value of cash inflows to the present value of cash outflows over a period of time for investment analysis.

Net Income

The total earnings of a company after all expenses and taxes have been subtracted from its total revenue.

Straight-Line Depreciation

A method of allocating the cost of a fixed asset evenly across its useful life.