1. How may recombinant DNA molecules be introduced into human cells? a. by splicing the needed genes into a mammalian chromosome using restriction enzymes. b. by adding plasmids to the mammalian cells. c. by using engineered viruses as vectors. d. by using a gene gun.

Biology: The Dynamic Science (MindTap Course List)
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ISBN:9781305389892
Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan
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Chapter19: Genomes And Proteomes
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1. How may recombinant DNA molecules be introduced into human cells?

a. by splicing the needed genes into a mammalian chromosome using restriction enzymes.
b. by adding plasmids to the mammalian cells.
c. by using engineered viruses as vectors.
d. by using a gene gun.
 
2. If someone is accused of a crime, investigators can collect his or her DNA to compare the DNA of the cells found at the crime scene. To collect human DNA, investigators often swab the inside of person’s cheek. Just a few human cheek cells contain enough material to perform PCR. In a cell, the nucleus and mitochondria contain DNA that is the starting material for PCR. Identify the 4 components needed to start a PCR reaction (equipment not included)
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