What Are Scaffolding Proteins

question 28

Multiple Choice

What are scaffolding proteins?

• A) ladderlike proteins that allow receptor-ligand complexes to climb through cells from one position to another
• B) microtubular protein arrays that allow lipid-soluble hormones to get from the cell membrane to the nuclear pores
• C) large molecules to which several relay proteins attach to facilitate cascade effects
• D) relay proteins that orient receptors and their ligands in appropriate directions to facilitate their complexing
• E) proteins that can reach into the nucleus of a cell to affect transcription

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Definitions:

Null Hypothesis

A statement or hypothesis that assumes no statistical significance or effect exists in a set of observations or experiment.

Two-Tailed Test

A hypothesis test in which the critical area for a rejection of the null hypothesis is in both tails of the probability distribution, allowing for testing of deviations in both directions.

Population Mean

The average of all the values in a population, representing the central tendency of the total population.

Type II Error

The failure to reject a false null hypothesis or a false negative in hypothesis testing.