Archives for posts with tag: RNA

For years, we have believed that DNA was made up of four bases – A (adenine), T (thymine), C (cytosine) and G (guanine), but research has shown that it isn’t quite that simple – since then, researchers have found a fifth, a fake fifth, a sixth, and a seventh and eighth base, as well as creating a bacterial genome that uses an artificial base, 5-chlorouracil.

Messenger RNA or mRNA helps translate the coding in DNA into proteins. For years we have thought there were only four bases in RNA, but researchers have found a fifth, made when the body adds a methyl group to adenine. This changes how the proteins are made and could lead to a number of diseases.

The research was published in Cell.

Breastfeeding helps to colonise babies’ guts with healthy bacteria, and this changes how they express the genes for immunity, improving their immune systems. Read the paper in Genome Biology.

black & white picture of  a baby's feet

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