Sequence Differences and Evolutionary Relationships

Listen to Dr. Sarah Tishkoff explain how to use DNA to reconstruct evolutionary history. (54 seconds)

Listen to Dr. Sarah Tishkoff explain how to use DNA to reconstruct evolutionary history.
(54 seconds)

• As explained in the video, evolutionarily related organisms share a common ancestor with an ancestral DNA sequence.
• As organisms evolve and diverge, their DNA sequences accumulate differences, also known as mutations.
• Two common types of mutations are called SNPs and Indels.