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Heavy DNA is DNA that is labeled with the heavy isotope of Nitrogen, 15N
Brian Udashkin, Woodridge NY
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∙ 13y ago
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In a gel electrophoresis's why are the lines closer together when the DNA strands are heavier?
Because the DNA cannot travel very long and spread apart when the strands are heavy. As a result, the DNA strands will all travel a relatively short distance and be closer together.
What is CsCl profile of a DNA and why CsCl is used for ultracentrifugation?
Since CsCl is a kind of heavy salt, it forms density gradients when centrifugation. When sedimentation equilibrium, DNA moves to the position where meets its density. The density of DNA is related to its GC%, by analytical ultracentrifugation, we can read the GC levels of the DNA from its position in the solution. Please refer to the article for detail: Using analytical ultracentrifugation to study compositional variation in vertebrate genomes (Euro Biophys J. 2003 32: pp418-426)
What checks DNA for error?
DNA fingerprinting
Principle enzyme involved in DNA replication?
DNA Polymerase.
What is the function of DNA helicare in DNA replication?
DNA Helicase unwinds and unzips the DNA. It separates the two strands of DNA so DNA replication can occur.
In a gel electrophoresis's why are the lines closer together when the DNA strands are heavier?
Because the DNA cannot travel very long and spread apart when the strands are heavy. As a result, the DNA strands will all travel a relatively short distance and be closer together.
How is DNA tested and why?
by DNA fingerprinting method , DNA-DNA hybirdization or DNA sequencing. to know the sequence of DNA
What is CsCl profile of a DNA and why CsCl is used for ultracentrifugation?
Since CsCl is a kind of heavy salt, it forms density gradients when centrifugation. When sedimentation equilibrium, DNA moves to the position where meets its density. The density of DNA is related to its GC%, by analytical ultracentrifugation, we can read the GC levels of the DNA from its position in the solution. Please refer to the article for detail: Using analytical ultracentrifugation to study compositional variation in vertebrate genomes (Euro Biophys J. 2003 32: pp418-426)
What checks DNA for error?
DNA fingerprinting
How would the DNA of the human compare to the DNA of the duck?
DNA is DNA it can not be changed.
Principle enzyme involved in DNA replication?
DNA Polymerase.
What is a DNA molecule containing regions from different sources?
Chimeras. In genetic engineering, molecules of combined DNA are known as chimeras because they are produced by combining DNA from different species. Combined DNA is also known as recombinant DNA, since DNA from 2 sources has been recombined to produce it.
What enzyme binds fragments of DNA on the lagging strand?
The enzyme that is used to bind DNA fragments together is DNA ligase. Using DNA ligase to join DNA fragments is the last step in the production of a recombinant DNA plasmid.
What is the function of DNA helicare in DNA replication?
DNA Helicase unwinds and unzips the DNA. It separates the two strands of DNA so DNA replication can occur.
A biologist is studying the process of how DNA is copied study which one DNA transcription DNA elongation DNA translocation DNA polymerase DNA replication?
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What is a synonym for DNA replication?
IT can be called * DNA duplication * DNA reproduction * DNA imitation
How does the DNA helix relate to DNA?
It is how the DNA is constructed.
