The insulin used to treat people with diabetes is commonly produced by inserting the DNA sequence for human insulin into a bacterium. The insulin the bacterium produces using that sequence is then harvested. In fact, DNA sequences from virtually any living organism could be inserted into a bacterium and the bacterium would be able to use the sequences to make the same proteins that the original organism did. In what way does this provide evidence for evolution?

Question

anonymous · Answer

A. Bacteria must be less evolved than higher organisms since they can still make proteins from the DNA of other organisms.
B. Since bacteria are able to use DNA from other organisms, they must have evolved from them as a common descendant.
C. Since the bacterium was changed by adding a foreign DNA sequence, the bacterium was able to evolve.
D. Since the genetic code is the same across species, these species must have inherited it from a common ancestor.

I think this one is also C, is that correct?

anonymous · Answer

Yeah C is right...

anonymous · Answer

:D

anonymous · Answer

I'd rather say D.

anonymous · Answer

^ @matthias this question is sort of tricky.. it could really be either one..

anonymous · Answer

A plasmid is inserted into the bacteria to make it produce insulin. It would be wrong to say it is evolving because of this measure.

anonymous · Answer

D was correct! Thanks for your help, both of you!! :)