The human genome is littered with "selfish genetic elements," which do not seem to benefit their hosts, but instead seek only to propagate themselves.
Evolution
Jul 6, 2022
0
94
Double-strand breaks in DNA happen every time a cell divides and replicates. Depending on the type of cell, that can be pretty often. Many proteins are involved in everyday DNA repair, but if they are mutated, the repair ...
Cell & Microbiology
Feb 3, 2013
0
0
In a new paper published in eLight, a team of scientists led by Professors Haizheng Zhong and Yongyou Zhang from the Beijing Institute of Technology and Professor Haiyan Qin from Zhejiang University have discovered nonlocal ...
Nanophysics
May 22, 2023
0
7
(PhysOrg.com) -- Meiosis - the pairing and recombination of chromosomes, followed by segregation of half to each egg or sperm cell - is a major crossroads in all organisms reproducing sexually. Yet, how the cell precisely ...
Cell & Microbiology
Nov 13, 2009
0
0
Dividing cells are prone to errors, and so they must be prepared to summon sophisticated emergency systems to deal with potential damage. One type of division-derailing mishap can occur when assault by certain chemicals causes ...
Cell & Microbiology
Aug 7, 2015
0
793
An Iowa State University team of researchers has developed a type of hybrid proteins that can make double-strand DNA breaks at specific sites in living cells, possibly leading to better gene replacement and gene editing therapies.
Biotechnology
Aug 30, 2010
0
0
Substantial advances for applications of nanocrystals in the fields requiring a continuous output of photons and high quantum efficiency may soon be realized due to discovery of non-blinking semiconductor nanocrystals. ...
Nanomaterials
May 14, 2009
2
0
Barley, a widely grown cereal grain commonly used to make beer and other alcoholic beverages, possesses a large and highly repetitive genome that is difficult to fully sequence. Now a team led by scientists at the University ...
Biotechnology
Aug 25, 2015
0
57
When it comes to sex, frogs, just like in people, exhibit a similar XX (female) and XY (male) sex chromosome pattern of inheritance.
Evolution
Jan 30, 2018
0
135
(PhysOrg.com) -- Cornell researchers have developed new statistical methods based on the complete genome sequences of people alive today to shed light on events at the dawn of human history.
Biotechnology
Sep 20, 2011
0
0
