In Knockout Experiments,_______________

question 21

Multiple Choice

In knockout experiments,_______________.  

• A) genes are added to chromosomes
• B) normal genes are replaced physically by mutated genes
• C) genes are mutated or deleted to prevent their expression
• D) mRNAs are prevented from attaching to ribosomes
• E) the protein products of specific genes are inactivated

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Definitions:

Hypothalamus

A region of the brain responsible for the production of many of the body's essential hormones, thereby regulating temperature, hunger, thirst, fatigue, sleep, and circadian rhythms.

Blood Sugar

The concentration of glucose in the blood, which is a primary source of energy for the body's cells.

Hunger Pangs

Sensations of discomfort or weakness caused by the need for food.

Satiety

The state of being satisfied; fullness.