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Limitations of Sequencing

APBIO-IFBFCX

DNA sequence comparison is a powerful tool in studying evolution. However, there are limitations to what it can tell us about the history of life on Earth.

What is a limitation of this technology?

A

It is only possible to obtain DNA samples from extant or recently extinct species.

B

It is possible that an organism will have genes for non-functional proteins.

C

Mutations can occur randomly in genomes.

D

There is greater variation in DNA sequences that in amino acid sequences.