Which Control Method Would Not Be a Suitable Choice for Killing

question 77

Multiple Choice

Which control method would not be a suitable choice for killing Mycobacterium in a capped culture tube?

• A) Ultraviolet (germicidal) light
• B) Gamma rays
• C) 121°C at 15 psi for 15 minutes
• D) 160°C for 2 hours
• E) All of the choices are correct.

---

Definitions:

Dependent Variable

The variable in an experiment that is expected to change in response to manipulations of the independent variable.

Control Group

In experimental research, a group of subjects who do not receive the experimental treatment and are used as a benchmark to measure the effect of the treatment.

Experimental Group

The group in a scientific study that receives the intervention or treatment under investigation.

Independent Variable

In an experimental setting, the variable that is manipulated or changed to observe its effect on the dependent variable.