Up to 95 percent of a person's DNA is believed to be junk DNA. In order to prevent these relics of evolution from rearranging chromosomes and causing disease, natural mechanisms exist to silence ...

Life's instructions are written in DNA, but it is the enzyme RNA polymerase II (Pol II) that reads the script, transcribing ...

This image illustrates the chemical structure of a purine molecule, highlighting the numbering of the carbon and nitrogen atoms. The purine structure consists of a pyrimidine ring (positions 1 to 6) ...

Key building blocks of DNA and RNA can be made from the same raw materials. This finding suggests that instead of one or the other kick-starting life on Earth, both chemicals were involved in the ...

Gene transcription produces pre-messenger RNAs (pre-mRNA) that are composed of exons and introns as the first RNA species. Subsequent splicing consists of the deletion of introns and the specific ...

Scientists found DNA and RNA components in meteorites. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Three meteorites contain the molecular ...

We have all been told to avoid direct sunlight between 12 noon and 3 p.m., seek out shade and put on sunscreen and a hat. Nevertheless, most of us have been experienced sunburn at least once. The skin ...

DNA is the code of life, and so advances that allow us to edit that code have unlocked vast potential, from simply editing away the buggy code of disease, to engineering animals that don’t spread ...