Microbiology Exam 2: DNA Technology questions with correct answers

Biotechnology CORRECT ANSWER - the use of microorganisms, cells, or cell components to make a product - ex: foods, antibiotics, vitamins, enzymes Genetic Engineering CORRECT ANSWER the manipulation of genetic material for practical purposes Artificial Selection CORRECT ANSWER - breed/culture a naturally-occurring organism/microbe that produces desired product Mutation CORRECT ANSWER - mutagens cause mutation that might result in a microbe with a desirable trait Site-Directed Mutagenesis CORRECT ANSWER change a specific DNA code to change a protein Recombinant DNA Technology CORRECT ANSWER - techniques for recombining genes from different sources in vitro and transferring this recombinant DNA into a cell where it may be expressed - allows genes to be moved across species barriers - overcome natural barriers: anatomical, molecular, physical appearance, behavioral, molecular Restriction Enzymes CORRECT ANSWER - discovered in bacteria - destroy bacteriophage DNA and DNA picked up in transformation in bacterial cells - cannot digest (host) DNA because of methylated cytosine’s -recognize short, specific nucleotide sequences