Question

How might similarities and differences in genetic codes, or the proteins built as a result of these codes, be used to determine how closely related different species are?

Answer 1

DNA sequences (and the protein amino acid sequences they encode), change by accumulating mutations over many generations. So the more similar 2 DNA sequences are, the more recently they shared a common ancestor. Look up molecular clock.

Answer 2

yes jc7 is rite..

Answer 3

thanks guys :)

Answer 4

thanks you

Answer 5

Thank you this helped me a lot..(: