One of the first breakthroughs in biotechnology was the discovery of the gene
that makes insulin. Part of this process involved scientists making DNA to
match each possible sequence of insulin mRNA. What was the next step of
this process?
A. Scientists found the DNA in the pancreas that matched the
manufactured DNA.
B. Scientists inserted pancreas DNA into bacterial cells.
C. Scientists mixed small portions of manufactured DNA with DNA
from the pancreas.
D. Scientists used the codon table to find the possible sequence of
mRNA.