Question

in pcr, a the gene sequence is determined b multiple copies of the dna sample are made. c dna is destroyed so it has no value. in dna recombination, what is created when the dna is opened up at the restriction site? a sticky ends b rna c double - stranded dna in gel electrophoresis, how is dna cut into smaller pieces? a scissors b restriction enzymes c lasers

Explanation:

PCR amplifies DNA to produce multiple copies. DNA recombination at restriction sites generates sticky ends. Restriction enzymes cut DNA into fragments for gel electrophoresis.

Answer:

In PCR: B. multiple copies of the DNA sample are made.
In DNA recombination: A. sticky ends
In gel electrophoresis: B. restriction enzymes