What Is the Role of Gal4 in Yeast Two-Hybrid Experiments

question 14

Multiple Choice

What is the role of Gal4 in yeast two-hybrid experiments?

• A) It is a selectable marker.
• B) It is a reporter gene.
• C) It metabolizes galactose,which is used as an energy source.
• D) It is split into two domains that together promote transcription of a target gene.
• E) Its ability to interact with other proteins is tested.

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Definitions:

Yerkes-Dodson Law

A principle suggesting that an optimal level of arousal exists for achieving the best performance on a task; too little or too much arousal can decrease performance.

Moderate Tasks

Tasks that are of medium difficulty, neither too easy nor too hard, requiring a reasonable level of skill or effort.

Need For Achievement

A psychological drive or motivation to accomplish goals, excel, and achieve competence.

n Ach

Need for achievement, a motivational term in psychology that represents an individual's desire for significant accomplishment, mastering of skills, control, or high standards.