Males may have shorter lifespans than females due to repetitive sections of the Y chromosome that create toxic effects as males get older. These new findings appear in a study by Doris Bachtrog of the University of California, ...
Cell & Microbiology
Apr 22, 2021
0
411
From cancer treatment to sunlight, radiation and toxins can severely damage DNA in both harmful and healthy cells. While the body has evolved to efficiently treat and restore damaged cells, the mechanisms that allow this ...
Molecular & Computational biology
Apr 15, 2021
0
150
Bearded dragon embryos can use two different sets of genes to become a female lizard—one activated by the sex chromosomes and the other activated by high temperatures during development. Sarah Whiteley and Arthur Georges ...
Plants & Animals
Apr 15, 2021
0
154
The DNA molecule is not naked in the nucleus. Instead, it is folded in a very organized way by the help of different proteins to establish a unique spatial organization of the genetic information. This 3D spatial genome organization ...
Cell & Microbiology
Apr 15, 2021
0
59
Scientists have found six sex chromosomes in the Odorrana swinhoana frog species endemic in Taiwan, giving new insights into how complex XY systems evolve.
Evolution
Apr 13, 2021
0
3
The full assembly of human chromosome 8 is reported this week in Nature. While on the outside this chromosome looks typical, being neither short nor long or distinctive, its DNA content and arrangement are of interest in ...
Biotechnology
Apr 8, 2021
0
183
Six genetic variants add up to determine the risk of several blood cancers in pre-disposed dog breeds, according to a study by Benoît Hédan at the University of Rennes and colleagues, publishing April 8th in the open-access ...
Veterinary medicine
Apr 1, 2021
4
109
Researchers at Lund University in Sweden have investigated how the X and Y chromosomes evolve and adapt to each other within a population. The results show that breaking up coevolved sets of sex chromosomes could lead to ...
Biotechnology
Mar 25, 2021
0
21
Researchers at Massachusetts General Hospital (MGH) have uncovered new clues that add to the growing understanding of how female mammals, including humans, 'silence' one X chromosome. Their new study, published in Molecular ...
Cell & Microbiology
Mar 15, 2021
0
29
Because human females have two X chromosomes and males have one X and one Y, somatic cells have special mechanisms that keep expression levels of genes on the X chromosome the same between both sexes. This process is called ...
Biotechnology
Mar 9, 2021
0
20
