6.047 Recitation 2 Notes

نویسنده

Sitara Persad

چکیده

Why align sequences? Sequence alignments can reveal many things about the functional, structural or evolutionary significance of regions of DNA, RNA or protein. Examples: • The degree of similarity between regions of amino acids can tell us how well that region is conserved, which can provide clues about the structural or functional significance of that region. • The DNA sequence alignment of multiple species can give us clues about how long ago they diverged from a common ancestor, and help us to build us a phylogenetic tree describing the evolutionary history of those species.

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