What is the role of telomeres?
Protecting chromosome ends
Synthesizing proteins
Breaking down RNA
Repairing DNA
Answer
Protecting chromosome ends, telomeres are specialized DNA sequences that cap the tips of chromosomes. They prevent the loss of genetic information during cell division, which occurs when the ends of chromosomes are shortened with each replication. Telomeres gradually shorten with each cell division, eventually reaching a critical length that triggers cellular senescence or apoptosis (programmed cell death).
Unlocking the Secrets of Life: The Elizabeth Blackburn Quiz
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