​The Molecular Clock Theory Proposes That Senescence Occurs Because _____

​The molecular clock theory proposes that senescence occurs because _____.

A) ​telomeres capping the ends of chromosomes become shorter with each cell division and their loss eventually stops the chromosomes from replicating
B) ​mistakes in the replication of cells or buildup of damaging byproducts from biologic processes eventually destroy the organism
C) ​unstable oxygen,formed normally during metabolism,can damage cells by initiating reactions that break down cell membranes
D) ​fast-paced living shortens one's lifespan
E) ​the genetic code directs cells to divide a certain number of times during their life span

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