In the equation, Lk = Tw + Wr, the term Wr:
A. describes the number of superhelical twists.
B. describes the number of crosses one single strand makes across the other.
C. is identical to the linking number when describing relaxed closed-circular DNA.
D. is pertinent to plasmid but not eukaryotic chromatin.
E. is equal to 1 when plasmid DNA is not supercoiled.
A
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A transposable element composed of an antibiotic resistance gene, a recombinase gene, and inverted repeats is identified in a bacterial genome. This element can be any of the following except ________.
A. a composite transposon B. an integrated conjugative element C. an insertion sequence D. a unit transposon
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A) dwarfism — the adrenal cortex B) gigantism — the anterior pituitary gland C) goiter — the adrenal medulla D) diabetes mellitus — the parathyroid glands
Cas genes code for a variety of proteins, including ________
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