Alfred Hershey and Martha Chase Examined Transformation Using Bacteriophage (Bacterial

question 12

Multiple Choice

Alfred Hershey and Martha Chase examined transformation using bacteriophage (bacterial DNA virus) and bacterial cells.Sulfur was used to label cellular components in this experiment because of its presence in the amino acid(s) :

• A)histidine.
• B)methionine and cysteine.
• C)tyrosine.
• D)glycine.
• E)serine.

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Definitions:

Senses

The physiological capacities of organisms that provide data for perception, including sight, hearing, smell, taste, and touch.

Cerebral Cortex

The outer layer of the cerebrum in the brain, responsible for many complex functions including thought, emotion, reasoning, and language.

Central Nervous System

The part of the nervous system consisting of the brain and spinal cord.

Experience-Expectant

Refers to brain growth and development that occurs in response to general environmental stimuli that are expected to be part of all human environments.