What do chaperone molecules do during protein folding?
AThey cut off the signal sequence
BThey add methyl groups to the chain
CThey join two subunits of a ribosome
DThey stop the protein from aggregating
Answer & Solution
Correct answer: D. They stop the protein from aggregating
1. Many proteins fold spontaneously once they leave the ribosome.
2. Some need helper molecules called chaperones.
3. Chaperones prevent those proteins from aggregating during the complicated process of folding.
_Source: OpenStax Biology (1st ed., CC BY 4.0), Ch 15 "Genes and Proteins", section 15.5 Ribosomes and Protein Synthesis_
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