Data Are Plotted for the Action of a Histone-Modifying Enzyme

question 10

Multiple Choice

Data are plotted for the action of a histone-modifying enzyme (solid lines) in two graph formats in Figure 4.10.Dashed lines indicate the data for the enzyme in the presence of an effector molecule, deoxycytidine triphosphate (dCTP) . Which statement is not true regarding this enzyme, its substrate (histone protein) , and its effector dCTP?

• A)The effector dCTP increases the Km.
• B)The enzyme is under allosteric control.
• C)The influence of the effector is reduced at high substrate (histone) concentrations.
• D)The enzyme obeys Michaelis-Menten kinetics.
• E)dCTP is an inhibitory effector of enzyme activity.

---

Definitions:

Sample

Portion of a larger group of subjects in a research study.

Qualitative Research

An inductive approach to analysis; no formal instruments are used and instead, loosely structured narrative data are collected; data are analyzed by identifying themes and patterns that emerge.

Data Collection

The process of gathering information about a client’s health status

Significance and Usefulness

The quality or state of being important or useful in relation to a specific context or objective.