DNA is found in nearly all living cells ... This means that one strand's sugar-phosphate chain runs in the 5' to 3' direction, whereas the other's runs in the 3' to 5' direction (Figure 4).

DNA strand displacement circuits are inching closer to becoming cellular machines. Scientists are finding ways to make these programmable nanodevices stable and functional inside living cells. If ...

In the late nineteenth century, a German biochemist found the nucleic acids, long-chain polymers of nucleotides ... giving two forms: RNA and DNA. In 1943, American Oswald Avery proved that ...

Polymerase chain reaction, or PCR, is a laboratory technique used to make multiple copies of a segment of DNA. PCR is very precise and can be used to amplify, or copy, a specific DNA target from a ...

PCR, or Polymerase Chain Reaction, is a revolutionary molecular biology technique that allows for the rapid amplification of specific DNA sequences. It is an essential tool in various fields, ...

Forensic DNA profiling uses polymerase chain reaction (PCR) to amplify short tandem repeats (STRs), which are highly variable DNA regions, typically with four repeating bases. This variability helps ...

Actually, that's DNA's main purpose ... synthesis is simply to create a polypeptide -- a protein made out of a chain of amino acids. In a hair follicle cell, a protein called keratin is made.