Regulatory Proteins That Prevent a Cell from Entering the S

question 29

Multiple Choice

Regulatory proteins that prevent a cell from entering the S phase under conditions of DNA damage are also known as ________.

• A) cyclins
• B) cyclin-dependent kinases
• C) antibodies
• D) tumor suppressors

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Definitions:

Name

A word or set of words by which a person, place, or thing is known, addressed, or referred to.

Leaf Litter Layer

The top layer of the forest floor covered by decomposing leaves, twigs, animal feces, and other organic materials.

Soil Horizon

A layer parallel to the soil surface, whose physical characteristics differ from the layers above and beneath.

Surface

The outermost or uppermost layer of something, often referring to land, a body of water, or a solid object.