A Stock Person at the Local Grocery Store Has a Job

question 15

Multiple Choice

A stock person at the local grocery store has a job consisting of the following five segments:
(1) picking up boxes of tomatoes from the stockroom floor
(2) accelerating to a comfortable speed
(3) carrying the boxes to the tomato display at constant speed
(4) decelerating to a stop
(5) lowering the boxes slowly to the floor.
During which of the five segments of the job does the stock person do positive work on the boxes?

• A) (1) and (5)
• B) (1) only
• C) (1), (2), (4), and (5)
• D) (1) and (2)
• E) (2) and (3)

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Definitions:

mRNA Processing

A series of biochemical modifications that pre-messenger RNA undergoes to become mature mRNA, which is then able to be translated into protein.

Regulation of Chromatin

The process by which the structure and function of chromatin are modified, affecting gene expression and activity.

Engineered Plasmids

Genetically modified plasmids used in biotechnology for the cloning, transfer, and manipulation of genes in research and therapy.

Cloned DNA

Copies of DNA sequences that have been created through laboratory techniques for study or manipulation.