What Is a Signal Peptide

question 6

Multiple Choice

What is a signal peptide?

• A)The amino acid sequence of a protein that detects changes in the external environment and signals this change to components in the cell.
• B)A regulatory protein that turns on/off the expression of certain genes.
• C)A protein used to signal cell division.
• D)A short amino acid sequence on the end of a protein that is used for transport of the protein out of the cell.
• E)A protein in the cytoplasmic membrane that is used to communicate with other closely related cells.

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Definitions:

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