Which of the Following Is the Correct Sequence of Events

question 32

Multiple Choice

Which of the following is the correct sequence of events after a receptor perceives a signal?

• A) The receptor is phosphorylated and then changes its shape. This leads to hormone release from the cell, which activates gene transcription.
• B) The receptor changes its shape and then becomes phosphorylated. This leads to activation of gene transcription and finally to hormone release from the cell.
• C) The receptor is phosphorylated and then changes its shape. This leads to activation of gene transcription and finally to hormone release from the cell.
• D) The receptor changes its shape and then becomes phosphorylated. This leads to hormone release from the cell, which activates gene transcription.

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Definitions:

Alternative Hypothesis

It is a statement that suggests there is a difference or effect in the population parameters being studied, contradicting the null hypothesis.

Level of Significance

Refers to the probability threshold below which the null hypothesis is rejected, indicating the degree of evidence required to conclude that an effect is statistically significant.

Type I Error

The mistaken disapproval of a valid null hypothesis, commonly referred to as a "false positive."

Null Hypothesis

A statement in hypothesis testing that assumes no significant difference or effect, serving as a default position until evidence indicates otherwise.