Radioactive or fluorescent-labeled RNA or single-stranded DNA pieces that are complementary to the gene of interest and are used to confirm the presence of a cloned gene are called
A. probes.
B. plasmids.
C. vaccines.
D. clones.
Which of the following procedures is not a usual step in a genetic engineering experiment?
A. inducing a mutation in a source chromosome
B. cleaving DNA with a restriction enzyme
C. recombining pieces of DNA from different species
D. cloning and screening target cells
Which of the following statements does not describe plasmids?
A. They are circular pieces of bacterial DNA.
B. They can replicate independently of the organism’s main chromosome.
C. They are often used as vectors in genetic engineering experiments.
D. They cannot be cut by restriction enzymes.
a 10 spot mb
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