Although Dolly was only three years old, her chromosomes had the length of a 9-10 year old sheep. Which of the following best describes why this occurred?

A. The cell lines that created Dolly were aged prematurely in the lab
B. Nonhomologous recombination
C. A mutation enhanced the rate of aging
D. Dolly was not a clone
E. The telomeres of the somatic cells that Dolly originated from were shortening


E

Biology & Microbiology

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