When Rebecca Cann decided to research on the evolution of humans, she chose to study mitochondrial DNA. Which of the following explains why she chose this type of DNA?
A. because mitochondrial DNA is more
abundant and therefore easier to extract
B. because mitochondrial DNA is recombined
from generation to generation and offers a
look at the lineage of the human population
C. because mitochondrial DNA is circular
D. because mitochondrial DNA lasts longer in
the tissues
A
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