Final answer:
The idea that a sequence leading to the degradation of a protein within a cell is called a death domain is false. The correct term for such a sequence is a 'degradation signal' or 'degron', and it leads to the targeted destruction of proteins.
Step-by-step explanation:
The claim that a specific internal sequence of amino acids that ensures that the protein containing it will not survive long within the cell is called a death domain is false. A death domain is actually a protein interaction module involved in apoptotic and inflammatory signaling pathways. The concept being referenced in the question is likely that of a degradation signal or degron, which is a sequence within a protein that signals for its degradation by proteasomes or lysosomes. Proteins can have different half-lives based on their structure and the presence of such signals. These degrons are recognized by the cell's quality control mechanisms, targeting proteins for destruction when they are no longer needed or are damaged.