Sentences with phrase «cytosine does»

Since the methylation of cytosine does not alter the DNA sequence, but only influences when and where these proteins are produced, it is considered an epigenetic modification.

Not exact matches

One problem is that although the technique is great at distinguishing adenine from methyladenine, it doesn't quite reach single - base resolution for cytosine and methylcytosine.

Such statements do not begin to address the conditions and processes that led to the assembly of the nucleotides — adenine, guanine, cytosine, thymine and uracil — nor do the statements indicate that the materials necessary to form the nucleotides might be present in hydrothermal vents.

The researchers discovered that DNA methylation — a fundamental, life - long process in which a methyl group is added or removed from the cytosine molecule in DNA to promote or suppress gene activity and expression — does in fact vary between FLS from the knees and hips of RA patients.