DNA methylation

[ mĕth′ə-lā′shən ]

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The modification of a strand of DNA after it is replicated, in which a methyl (CH3) group is added to any cytosine molecule that stands directly before a guanine molecule in the same chain. Since methylation of cytosines in particular regions of a gene can cause that gene's suppression, DNA methylation is one of the methods used to regulate the expression of genes.

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Words nearby DNA methylation

DNAase, DNA chip, DNA fingerprint, DNA fingerprinting, DNA helix, DNA methylation, DNA microarray, DNA polymerase, DNA polymorphism, DNA probe, DNA repair

How to use DNA methylation in a sentence

Using standard methods, the cost of printing DNA could run upwards of a billion dollars or more, depending on the strand.
Design Your Own Dinosaur: The Era of Custom DNA|Justin Jones|January 8, 2015|DAILY BEAST
Through his company, consumers will be able to cheaply make custom DNA strands, including what Heinz calls “creatures.”
Design Your Own Dinosaur: The Era of Custom DNA|Justin Jones|January 8, 2015|DAILY BEAST
DNA tests were used to confirm Albert's status as father in both cases, following protracted legal battles.
Princess Charlene Gives Birth To Twins Gabriella and Jacques|Tom Sykes|December 10, 2014|DAILY BEAST
The at-home genetics testing company 23andme, established in 2006, helps people learn more about their “DNA relatives.”
Nothing Says I Love You Like Data|The Daily Beast|December 8, 2014|DAILY BEAST

The story (and some DNA evidence) goes, the locals are the descendants of a band of Roman soldiers from 36 B.C.
The Chinese Town Descended From Romans?|Nina Strochlic|December 4, 2014|DAILY BEAST
The Dna takes a westerly course towards the Gulf of Riga where it empties near the city of that name.
The Story of Russia|R. Van Bergen, M.A.
Another bishop sailed up the Dna with a fleet of twenty-three ships, and in 1200 founded Riga.
The Story of Russia|R. Van Bergen, M.A.
It has been explained that by the methylation of rosaniline Hofmann obtained violet colouring-matters.
Coal|Raphael Meldola
The methylation of aniline can obviously be carried out by the foregoing process only when beet-sugar residues are available.
Coal|Raphael Meldola
This is a pitiful admission for a biochemist to make—DNA should be the cornerstone of his life.
Card Trick|Walter Bupp AKA Randall Garrett

Cultural definitions for DNA methylation

DNA methylation

[ (meth-uh-lay-shuhn) ]

The chemical reactions that place a methyl group (a combination of one carbon atom and three hydrogen atoms) at a particular spot on DNA during organismal development. The effect of this process is probably to “turn off” various genes during the process of cellular differentiation, causing the cell to develop into a specific type.

notes for DNA methylation

It is thought that during cloning, the methyl groups are removed from the DNA, turning the genes back “on” again.

notes for DNA methylation

There is evidence that embryonic stem cells are cells in which this process has not yet occurred.