When a sperm and an egg cell merge a new life begins. This is the case in humans and in animals, but in principle also in plants. A German-Israeli team led by the biologists Professor Ralf Reski from Freiburg and Professor ...
Biotechnology
Jan 18, 2016
0
23
A smiling and very green Kermit looking down from a wall portrait seems to happily give a thumbs—or flipper—up to one of the University of Wyoming's self-described frog guys trying to unravel the mysteries of what in ...
Biochemistry
Dec 11, 2015
0
8
Genetic material from ancient viral infections is critical to human development, according to researchers at the Stanford University School of Medicine.
Biotechnology
Nov 23, 2015
0
1379
A single shot into the muscle is enough to stop egg and sperm production in mice, report California Institute of Technology scientists on October 5 in Current Biology. The injection delivers packaged DNA into muscle cells, ...
Plants & Animals
Oct 5, 2015
0
46
A team of scientists in Sweden has broken open the genetic recipe for a human embryo's first three days of development, chronicling what happens in the crucial hours that follow the union of egg and sperm.
Biotechnology
Sep 4, 2015
25
69
(Phys.org)—Among other things, the egg is optimized to process the sperm genome. The cytoplasmic factors that make this possible also give the egg the ability to reprogram the nuclei from other kinds of cells if these nuclei ...
For cell division to be successful, pairs of chromosomes have to line up just right before being swept into their new cells, like the opening of a theater curtain. They accomplish this feat in part thanks to structures called ...
Cell & Microbiology
Jul 6, 2015
0
41
When egg cells form with an incorrect number of chromosomes—a problem that increases with age—the result is usually a miscarriage or a genetic disease such as Down syndrome. Now, researchers at the RIKEN Center for Developmental ...
Cell & Microbiology
Jul 1, 2015
0
543
Flowering plants naturally know when they need to spare or perish their cells. In a new study reported in Cell, an international group of plant biologists at ITbM, Nagoya University and other research institutes, have examined ...
Cell & Microbiology
Apr 23, 2015
0
29
The United States' pre-eminent quarter horse organization may refuse to register cloned animals, an appeals court ruled Wednesday in a case brought by two Texas ranchers.
Other
Jan 15, 2015
1
14
