replication (redirected from replication bubble)

replication /rep·li·ca·tion/ (rep?li-ka´shun)

1. a turning back of a part so as to form a duplication.

2. repetition of an experiment to ensure accuracy.

3. the process of duplicating or reproducing, as replication of an exact copy of a polynucleotide strand of DNA or RNA.rep´licative

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rep·li·ca·tion (rpl-kshn)

n.

1. The act or process of duplicating or reproducing something.

2. Autoreproduction.

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replication,

n the repetition of a scientific study to corroborate or dispute its conclusions. Multiple replications are needed in each individual study to ensure statistical reliability.

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replication

1. a turning back of a part so as to form a duplication.

2. repetition of an experiment to ensure accuracy.

3. the process of duplicating or reproducing, as replication of an exact copy of a polynucleotide strand of DNA or RNA. See also deoxyribonucleic acid.

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replication bubble

seen in electron micrographs of DNA in replicating eukaryotic cells, suggesting bidirectional growth.

conservative replication

an invalid hypothetical model for DNA replication in which both strands of the double helix remain together after replication. DNA replicationoccurs via semiconservative mechanisn in which one parental and one nascent strand are produced.

dispersive replication

in DNA replication, a hypothetical model in which nucleotides of the parental DNA strand would be randomly scattered along the strands of the newly synthesized DNA, as compared with semiconservative and conservative DNA replication.

replication fork

a 'y' shaped structure in replicating DNA, the arms of which are the newly synthesized DNA molecules composed of one parental and one nascent strand and the stem of which is the parental DNA that is progressively unwinding as it is copied.

semiconservative replication

a reference to the preservation of one of the original parental DNA strands in each of the two nascent DNA molecules produced following DNA replication.