A cluster of CG sequences that often marks the beginning of a gene in a mammalian genome is a/an ________.

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A single-strand break in a double-stranded nucleic acid is a/an ________.

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________ is a topological state of DNA in which the helix is underwound or overwound so that the molecule tends to coil up on itself.

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________ is the disk-shaped complex of a histone octamer and DNA that represents the fundamental unit of DNA organization in eukaryotes.

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________ are the short segments of DNA formed in the discontinuous lagging strand synthesis of DNA.

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In addition to a polymerase active site that synthesizes a new polynucleotide chain, many polymerases contain an additional active site that acts to ________ the polymerase.

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________ is the transcriptionally active, relatively uncondensed chromatin in a eukaryotic cell.

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A heritable variation in the level of expression of a gene according to its parental origin is called ________.

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An oligonucleotide that base-pairs with a template polynucleotide strand and is extended through template-directed polymerization is a/an ________.

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During DNA ________, the parental polynucleotide strands separate so that each can direct the synthesis of a complementary daughter strand resulting in two complete DNA double helices.

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________ is a property of a motor protein or other enzyme that undergoes many reaction cycles before dissociating from its track or substrate.

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Reverse transcriptase is a DNA polymerase that uses ________ as its template.

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A model for DNA replication in which DNA polymerase and associated proteins remain stationary while the DNA template is spooled through them is the ________.

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The ________ is the DNA strand that is synthesized as a series of discontinuous fragments that are later joined.

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A highly condensed, nonexpressed eukaryotic DNA is ________.

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________ is the progressive movement of a single-strand break in DNA through the actions of an exonuclease that removes residues followed by a polymerase that replaces them.

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Replication fork is the point in a replicating DNA molecule where the two ________ strands separate in order to serve as templates for the synthesis of new strands.

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The DNA strand that is synthesized continuously during DNA replication is the ________.

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Discontinuous synthesis is a mechanism whereby the ________ of DNA is synthesized as a series of fragments that are later joined.

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The mechanism of DNA duplication in which each new molecule contains one strand from the parent molecule and one newly synthesized strand is ________.

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