Adding Acetyl Groups Makes Genes Accessible to Transcription by

question 29

Multiple Choice

Adding acetyl groups makes genes accessible to transcription by

• A) increasing the pH of the cell.
• B) making histones loosen their grip on the DNA molecule.
• C) modifying the nucleotides of the promoter region of the DNA molecule.
• D) enhancing the activity of RNA polymerase.
• E) enhancing the development of a DNA-RNA hybrid.

---

Definitions:

Input-validation Loop

A programming construct used to repeatedly request input from the user until the input meets certain validation criteria.

Condition-controlled Loop

A loop that executes as long as a specified condition remains true.

Valid Range

The set of values that a variable or expression is legally allowed to take within a program.

Expression

A combination of variables, constants, and operators that the programming language evaluates to produce a value.