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DNA sequence of the human Y chromosome fully determined for first time
Researchers determined the full sequence of the human Y chromosome for the first time. Humans have 23 pairs of chromosomes, and Y is …
Francisco Tutella
Aug 23, 2023
Are egg cells in aging primates protected from mutations?
New mutations occur at increasing rates in the mitochondrial genomes of developing egg cells in aging rhesus monkeys, but the increases …
Sam Sholtis
Apr 4, 2022
New approach can help identify young children most at risk for obesity
UNIVERSITY PARK, PA. — Newly developed risk scores synthesize genetic information into an easy-to-interpret metric that could help …
Gail McCormick
Jan 10, 2022
A new class of functional elements in the human genome?
Some regions of the human genome where the DNA can fold into unusual three-dimensional structures called G-quadruplexes (G4s) show …
Sam Sholtis
Jun 29, 2021
Unusual DNA folding increases the rates of mutations
DNA sequences that can fold into shapes other than the classic double helix tend to have higher mutation rates than other regions in …
Sam Sholtis
Feb 8, 2021
Evolution of the Y chromosome in great apes deciphered
Researchers have reconstructed the ancestral sequence of the great ape Y chromosome by comparing three existing (gorilla, human, and …
Sam Sholtis
Oct 6, 2020
Scientists take a step toward understanding 'jumping genes' effect on the genome
Comparisons of DNase Hypersensitive Site (DHS) signals among L1 flanking regions and control.The figure illustrates the distribution of …
Matt Swayne
Sep 29, 2020
New mutations accumulate in reproductive cells of older mice
Older mice have more new mutations – changes in DNA sequence that occur in the individual rather than being inherited from a …
Sam Sholtis
Jul 15, 2020
Connecting the dots
Millions of tiny dots litter the canvas, each independently just a splotch of unmixed pigment but together a masterpiece of illusion …
Gail McCormick
Apr 9, 2020
Tracking inheritance of human mitochondrial DNA
Mother’s age, a bottleneck, and selection affect how disease-causing mutations persist A new study by researchers at Penn State and …
Gail McCormick
Nov 18, 2019
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