Clonal dominance is a phenomenon that occurs when descendants (i.e., clones) of one or more founder cells in an organism contribute disproportionally to the system's final structure as the tissue grows. This phenomenon is ...
In 2002, Secretary of state Donald Rumsfeld made a statement regarding weapons of mass destruction that today is still well known. He famously parsed the evidence (or lack thereof) into "known knowns, known unknowns, and ...
Building on previous efforts to create a platform for the extended study of primate embryos in cell culture, two new reports from the State Key Laboratory of Primate Biomedical Research, Kunming University of Science and ...
A protein complex prevents the repair of genome damage in human cells, in mice and in the nematode Caenorhabditis elegans, a team of researchers at the University of Cologne has discovered. They also successfully inhibited ...
Cell & Microbiology
Mar 23, 2023
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196
The Prussian carp is considered one of the most successful invasive fish species in Europe. Its ability to reproduce asexually gives it a major advantage over competing fish. An international research team has now managed ...
Ecology
Jul 19, 2022
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191
A team of researchers affiliated with multiple institutions in Japan has produced offspring from in vitro–derived germ cells in rats. In their paper published in the journal Science, the group describes their methodology ...
From fathers to children, the delivery of hereditary information requires the careful packing of DNA in sperm. But just how nature packages this DNA to prepare offspring isn't clear. Using new technology to reveal the 3-D ...
Cell & Microbiology
Feb 18, 2019
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192
Studies of human populations and animal models suggest that a father's experiences such as diet or environmental stress can influence the health and development of his descendants. How these effects are transmitted across ...
Cell & Microbiology
Oct 17, 2018
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10642
(Phys.org)—It's strange to think that there was a time when molecular cell biology was considered by professionals of other scientific specialties as disreputable or laughable. But the motivation for much cellular biology ...
The Y chromosome is a symbol of maleness, present only in males and encoding genes important for male reproduction. But a new study has shown that live mouse progeny can be generated with assisted reproduction using germ ...
Biotechnology
Jan 28, 2016
3
492
Germ cells are progenitors of the gametes. These singled-out cells move through the gut to the developing gonads and undergo mitotic proliferation followed by meiosis and differentiation into either eggs or sperm (mature gametes). Plants do not have a germ line set aside in early development. Instead germ cells can come from somatic cells in the adult floral meristem.
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