i am working on DNA methylation level of cancer-related genes and their expressions in colorectal cancer.i am using trizol for RNA extraction but i usually get 18s band thicker than 28s or similar. any explanation for this result?
thank you
per:
https://www.thermofisher.com/us/en/home/references/ambion-tech-support/rna-isolation/tech-notes/is-your-rna-intact.html
If you have a much larger 18S band than 28S, its because your 28S RNAs degraded. The ratio of 18 to 28S RNA is often indicative of RNA quality.
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