Most living cells have a defined number of chromosomes: Human cells, for example, have 23 pairs. As cells divide, they can make errors that lead to a gain or loss of chromosomes, which is usually very harmful.
Cell & Microbiology
Jun 19, 2017
2
1541
Buried for 100,000 years at Xujiayao in the Nihewan Basin of northern China, the recovered skull pieces of an early human exhibit a now-rare congenital deformation that indicates inbreeding might well have been common among ...
Archaeology
Mar 18, 2013
0
0
Cancer cells are resourceful survivors with plenty of tricks for staying alive. Researchers have uncovered one of these stratagems, showing how cells lacking the tumor suppressor BRCA1 can resume one form of DNA repair, sparing ...
Cell & Microbiology
Jan 21, 2013
0
0
University of Dundee scientists have solved a mystery concerning one of the most fundamental processes in cell biology, in a new discovery that they hope may help to tackle cancer one day.
Cell & Microbiology
May 12, 2017
0
319
Like its flavor profile, the genome of Arabica coffee is large and complex. This makes breeding and genetic survey work more difficult, but this diverse genetic background may have contributed to bean's popularity, practicality, ...
Molecular & Computational biology
Jan 24, 2024
0
69
University of Pennsylvania biologists studying human reproduction have identified what is likely the major contributing factor to the maternal age-associated increase in aneuploidy, the term for an abnormal number of chromosomes ...
Cell & Microbiology
Sep 8, 2010
0
0
Since scientists have begun sequencing the genome of cancer cells, they have noticed a curious pattern. In many different types of cancers, there are cells in which a part of a chromosome looks like it has been pulverized, ...
Cell & Microbiology
Dec 17, 2015
0
120
Princeton scientists have identified genes responsible for controlling reproductive life span in worms and found they may control genes regulating similar functions in humans.
Biotechnology
Oct 22, 2010
3
0
Two remarkable discoveries were today revealed by researchers into genome analysis of Leishmania parasites. These results uncovered a surprising level of variation at the genome structure level.
Biotechnology
Oct 27, 2011
0
0
In humans, a fertilized egg is no guarantee of reproductive success. Most embryos stop developing and perish within days of fertilization, usually because they have an abnormal number of chromosomes. Now, researchers at Columbia ...
Cell & Microbiology
Jul 19, 2022
0
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