Chilled ethanol used during the isolation of DNA(A) precipitates DNA(B) removes proteins such as histones(C) facilitates the action of restriction enzymes(D) breaks open the cell to release DNA
The antibiotic resistance gene that enables transformed cells to grow on a medium containing ampicillin is the(A) origin of replication(B) selectable marker(C) recombinant protein(D) restriction site
Which of the following bacterial species is used to produce genetically engineered insulin?(A) Mycobacterium(B) Rhizobium(C) Saccharomyces(D) Escherichia
Micro-particles used in biolistics are made up of which of the following elements?(A) Platinum or zinc(B) Silver or platinum(C) Silicon or platinum(D) Gold or tungsten