Chromosome tips, or ____, function as a cellular clock that ticks down as pieces are lost from the very ends.
A. chromatids.
B. centromeres.
C. centrioles.
D. telomeres.
Answer:D
Chromosome tips, or ____, function as a cellular clock that ticks down as pieces are lost from the very ends.
A. chromatids. B. centromeres. C. centrioles. D. telomeres.