When the Function of the Newly Made Polypeptide Is to Be

question 14

Multiple Choice

When the function of the newly made polypeptide is to be secreted from the cell where it has been made, what must occur?

• A) It must be translated by a ribosome that remains free of attachment to the ER.
• B) Its signal sequence must target it to the ER, from which it goes to the Golgi.
• C) It has a signal sequence that must be cleaved off before it can enter the ER.
• D) It has a signal sequence that targets it to the cell's plasma membrane where it causes exocytosis.
• E) Its signal sequence causes it to be encased in a vesicle as soon as it is translated.

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Definitions:

Standard Deviation

Square root of the variance that represents the average deviation of a score from the mean.

Sampling Distribution

The probability distribution of a given statistic based on a random sample, used to estimate properties of an underlying population.

Mean

The arithmetic average of a set of scores.

σ

A symbol commonly used in statistics to represent the standard deviation of a population.