Fragments of DNA from the test bind to the sites on the array that correspond to the genetic variant that person has, giving clues to the person's ancestry and family history. For example ...
That discovery led to the invention of the polymerase chain reaction, or PCR (as in the PCR tests we took during the pandemic), which enables scientists to select specific DNA fragments and then ...
The epi-bits method relies on the parallel assembly of pre-synthesized DNA fragments, called DNA bricks, onto a reusable strand. Each brick binds to a unique location, guiding an enzyme to methylate a ...
The presence of mitochondrial DNA with deletions—the loss of fragments of DNA sequence—in cerebrospinal fluid could be an early marker of severe brain disease and an initial link in the whole ...
Most of the bones were crushed and burned, reducing their potential to yield usable DNA. Latham, a professor of biology and anthropology, said bone fragments deemed in poor shape are being held ...
A team from the University of Florida developed a microfluidic device for DNA purification that could speed up analysis of laboratory samples and match or exceed the purity of existing methods.