A technique that separates a readable pattern of DNA fragments is
A. gel electrophoresis.
B. biotechnology.
C. gene probes.
D. recombinant DNA.
E. genetic engineering.
Answer: A
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The cells produced by mitotic divisions are considered to be ____ the original cell
a. smaller versions of b. genetically unique from c. clones of d. mutants of e. plasmids of
Vascular tissue cells with long, tapered, overlapping ends are known as ____
a. sclerenchyma b. tracheids c. collenchyma d. parenchyma e. vessel elements
Whether a geographic barrier can block gene flow
depends on an organism’s a. means of travel. b. means of gamete dispersalspeed of travel. c. inclination to disperse. d. range of travel. e. A and B are both correct.
"Sticky ends" are:a
the single-stranded ends of a DNA segment created by some restriction enzymes. b. a problem in recombinant DNA technology because they form loops of single-stranded DNA. c. double-stranded ends of a DNA segment created by some restriction enzymes. d. sites of the origin of replication in prokaryotes.
e. sugar molecules that are bound to the ends of a DNA fragment.