The SCF Ubiquitin Ligase Can Recognize and Mark Various Target

question 18

Multiple Choice

The SCF ubiquitin ligase can recognize and mark various target proteins at different stages of the cell cycle. In this complex, …

• A) different F-box subunits recognize different target proteins.
• B) the F-box subunit and the E2 ubiquitin-conjugating enzyme are at the opposite ends of the C-shaped molecule.
• C) a scaffold protein arranges the other subunits such that the two ends of the complex are separated by a gap.
• D) the use of interchangeable parts such as the F-box subunits makes economical use of the genetic information and allows for rapid evolution of new functions.
• E) All of the above.

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Definitions:

Biological Parents

The parents who are genetically related to the child, contributing half of the child's genetic makeup each.

Metabolize

The biochemical process by which organisms convert substances into energy or materials necessary for cellular function and growth.

Taste Buds

Sensory organs located on the tongue that are responsible for perceiving different types of tastes.

Action Potentials

Brief electrical impulses that are the means by which information is transmitted along neurons.