When plasmids arc used to produce a desired protein
A. the plasmids are inserted into the bacterial chromosome.
B. the plasmids multiply and produce the protein outside of the bacterium.
C. the bacterial chromosome is genetically engineered and the plasmid is used to help the bacterium replicate.
D. the desired gene is inserted into the plasmid and the plasmid is returned to the bacterium by transformation,
E. the bacterial genome and plasmid arc inserted into the genome of the cell containing the desired gene (perhaps the cell of a plant or animal). The feature of "sticky ends" that makes them especially useful in DNA recombination is their ability to
A. bind to DNA and thereby activate transcription.
B. bind to ribosomes and thereby activate translation.
C. form hydrogen-bonded base pairs with complementary single-stranded stretches of DNA. D. allow plasmids to attach to the main bacterial chromosome.
E. insert a segment of RNA into a bacterial chromosome.
A vaccine works by
A. inhibiting bacterial replication.
B. stimulating the immune system.
C. inhibiting viral replication.
D. preventing the translation of mRNA.
E. stimulating the secretion of insulin.
If you commit a crime, you need to make sure that you do not leave even the smallest speck of blood, hair, etc., from your body behind, because if you do, the DNA in this material can be amplified by
Subjected to genetic analysis, and used to identify you as the perpetrator of the crime,
An ATP
b. PCR
C blotting
d. RFLP
E. reverse transcriptase