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Methyl Orange is an indicator that is used to indicate the equivilance point of and acid-base titration. In acidic environments, it turns red and in basic environemnts, or pH of 4.4 and higher, it turns yellow. It is prepared by treatment of helianthine with sodium hydroxide , helianthine is obtained by coupling diazotised sulphanilic acid with N,N-dimethylaniline .
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What has the author Woon Ki Paik written?
Woon Ki Paik has written: 'Protein methylation' -- subject(s): Methylation, Proteins, Transmethylation
What does Methylation of DNA prevent?
Methylation of DNA can regulate gene expression by preventing transcription factors from binding to specific regions of DNA, thereby silencing gene expression. Additionally, methylation of DNA can help stabilize the structure of chromosomes and maintain genomic stability.
DNA methylation in prokaryotes?
In prokaryotes, DNA methylation is a common epigenetic modification that involves the addition of a methyl group to cytosine bases in DNA. This process plays a role in regulating gene expression, DNA replication, and protection against foreign DNA such as viruses. DNA methylation patterns can vary between species and are important for controlling various cellular processes.
Where does methelation bind?
Methylation typically occurs on nitrogen or oxygen atoms in biological molecules such as proteins, DNA, and RNA. For example, in DNA, methylation often occurs on cytosine bases. Methylation can also occur on histone proteins associated with DNA to regulate gene expression.
How does doxorubicin affect DNA methylation?
Doxorubicin can induce changes in DNA methylation patterns by affecting the activity of DNA methyltransferase enzymes. It can lead to global hypomethylation or hypermethylation of specific gene promoters, influencing gene expression and potentially contributing to its cytotoxic effects.
What protect the DNA?
Methylation protects DNA from nucleases, endonucleases
Will methylation of DNA tend to turn a gene on or off?
off
What is the relationship between methylation and genomic imprinting?
Methylation is a process where methyl groups are added to DNA, which can affect gene expression. Genomic imprinting is a phenomenon where certain genes are expressed based on whether they are inherited from the mother or father. Methylation plays a key role in genomic imprinting by regulating which parent's gene is expressed.
What chemical modificatin can shut down regions or newly replicated DNA?
The newly replicated DNA regions can be terminated by methylation chemical modification. Methylation is a methyl group alkylation of hydrogen atom replacement.
Which process is associated with methylation of glutamate residues?
chemotaxis in e coli(bacteria)
What are three types of post-translational modification?
methylation lipidation glycosylation phosphorylation
What is the chemical basis of gene imprinting?
Gene imprinting involves the addition of methyl groups to specific regions of DNA, a process known as DNA methylation. This methylation pattern is established during early development and can result in certain genes being silenced based on whether they were inherited from the mother or the father. It plays a critical role in regulating gene expression and cellular differentiation.
