nucleotide and amino acid sequence comparision

Question

[oumedgergis6]

I appreciate to give me some tips on how to choose viral sequences for the purpose of comparisons?

Is it possible to compare nucleotide sequences of variable length together?

How to detect gene mutation when comparing sequences?

What is a frame shifting?

Best Regards

Oumed

[Pierre Lindenbaum]

"Ten Simple Rules for Getting Help from Online Scientific Communities" http://www.ploscompbiol.org/article/info:doi%2F10.1371%2Fjournal.pcbi.1002202

[Coryza]

Ah, thats a good suggestion! Like ;)

Answer 1

[Coryza]

I suggest you use google.. It can answer each of your questions.

http://en.wikipedia.org/wiki/Frameshift_mutation

http://en.wikipedia.org/wiki/Mutation

http://www.ncbi.nlm.nih.gov/genome/viruses/

https://blast.ncbi.nlm.nih.gov/Blast.cgi