The transformation step in creating bacteria genetically engineered to produce human proteins involves:
A. binding of the donor DNA to the vector
DNA and renaturing.
B. cleaving the donor and vector DNA so they
can be bound into a single molecule.
C. bacteria taking up the recombinant DNA in
the form of the vectors.
D. bacteria expressing the novel proteins
encoded by the donor DNA.
E. None of the answer options are correct.
C
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Histamine
a. causes blood vessels to contract. b. causes capillaries to lose their permeability. c. causes an outward flow of fluids from the capillaries. d. reduces tissue swelling. e. enhances the function of cytokines.
Which of the following lists the structures of the male reproductive tract in the proper order from sperm production to ejaculation?
A. seminal vesicles; vas deferens; prostate; urethra; ejaculatory duct B. vas deferens; epididymis; seminiferous tubules; ejaculatory duct; urethra C. vas deferens; epididymis; seminal vesicles; ejaculatory duct; urethra D. epididymis; seminiferous tubules; ejaculatory duct; vas deferens; urethra E. seminiferous tubules; epididymis; vas deferens; ejaculatory duct; urethra
Plasmid cloning vectors generally contain genes for which two traits?
a. lacZ production and ampicillin resistance b. ?-galactosidase enzyme production and ampicillin resistance c. DNA ligase production and sticky ends d. DNA ligase and reverse transcriptase production e. DNA polymerase production and antibiotic resistance
Phosphodiesterase catalyzes the conversion of:
a. a protein to a phosphorylated protein. b. GDP to GTP. c. cAMP to AMP. d. IP3 to PIP2. e. calcium to calcium-calmodulm