Human cloning with Chinese characteristics
Chinese genetic scientists must not be put off sensitive research by ethical concerns, the team behind a controversial study on modified human embryos said Wednesday as debate erupted over the paper.
Chinese genetic scientists must not be put off sensitive research by ethical concerns, the team behind a controversial study on modified human embryos said Wednesday as debate erupted over the paper.
Biotechnology
Apr 13, 2016
0
263
From the Middle Ages to the Enlightenment, "monstrous births"—malformed or anomalous fetuses—were, to Western medicine, an object of superstition. In 19th-century America, they became instead an object of the "modern ...
Social Sciences
Sep 7, 2023
1
28
The reason why, in terms of evolution, organisms have sex may seem rather obvious – they do it to reproduce. Clearly, natural selection must favour individuals who can reproduce over those who can't. But this is missing ...
Evolution
Mar 1, 2016
0
406
Sexual reproduction is thought to be essential for mixing up genes and holding your own in the race for survival. A major embarrassment to this theory are microscopic animals called rotifers, one class of which has reproduced ...
Biotechnology
Apr 15, 2016
0
1383
Male nursery web spiders (Pisaura mirabilis) prepare silk-wrapped gifts to give to potential mates. Most gifts contain insects, but some gifts are inedible plant seeds or empty exoskeletons left after the prey has already ...
Plants & Animals
Nov 13, 2011
5
0
In all the talk of tackling environmental problems such as climate change, the problem of population growth often escapes attention. Politicians don't like talking about it. By and large, neither do environmentalists—but ...
Environment
Oct 22, 2020
128
3049
A new study reveals how sperm change their swimming patterns to navigate to the egg, shifting from a symmetrical motion that moves the sperm in a straight path to an asymmetrical one that promotes more circular swimming.
Cell & Microbiology
Nov 1, 2021
0
672
Bringing extinct animals back from the dead is no longer the realm of science fiction but is fast becoming a scientific reality.
Ecology
Mar 1, 2022
0
247
(Phys.org)—Sex or no sex? Using various species of the evening primrose (Oenothera) as his model, Jesse Hollister, a former University of Toronto post-doctoral fellow, and his colleagues have demonstrated strong support ...
Evolution
Jan 12, 2015
7
62
Just as styles in sexy clothes or fashion change from year to year and culture to culture, "sexy" genes, or genes specific to sex, also change rapidly. But there is one sex-specific gene so vital, its function has remained ...
Biotechnology
Jul 15, 2010
11
0