Question

Will give 20 points!

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?
A) Since bacteria are able to use DNA from other organisms, they must have evolved from them as a common descendant.
B) Bacteria must be less evolved than higher organisms since they can still make proteins from the DNA of other organisms.
C) Since the genetic code is the same across species, these species must have inherited it from a common ancestor.
D) Since foreign DNA was added to the bacteria, it evolved beyond higher organisms.

Answer 1

Answer D. Because the DNA is different

Answer 2

Correct answer: C). Since the genetic code is the same across species, these species must have inherited it from a common ancestor.

The production of human insulin is a multi-step biochemical process that depends upon the recombinant DNA technology and insulin gene. In the production of human insulin the insulin gene is inserted into bacteria and then it is grown on suitable media and bacteria grow on that media. The bacteria produces insulin that is harvested and packed in a vial and sends to the market for the patient. The genetic code is universal, it means that the same codon code for same amino acid in all organism.

Hence, the correct answer would be option C.