For an ovary to remain an ovary, the female organ has to continuously suppress its inner capacity to become male. That's the conclusion of a study in the December 11th issue of the journal Cell revealing that the ovaries ...
Biotechnology
Dec 10, 2009
0
0
(PhysOrg.com) -- Language change among our prehistoric ancestors came about via the arrival of immigrant men - rather than women - into new settlements, according to new research.
Archaeology
Sep 9, 2011
2
0
Researchers at Johns Hopkins have discovered what keeps an enzyme from becoming overzealous in its clipping of DNA. Since controlled clipping is required for the production of specialized immune system proteins, an understanding ...
Cell & Microbiology
Dec 24, 2014
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0
Often considered the world's oddest mammal, Australia's beaver-like, duck-billed platypus exhibits an array of bizarre characteristics: it lays eggs instead of giving birth to live babies, sweats milk, has venomous spurs ...
Plants & Animals
Jan 6, 2021
15
2980
Human sex chromosomes originated from a pair of autosomes, the ordinary or non-sex chromosomes that contain the majority of our genome and come in identical pairs. That ancestral pair of autosomes diverged to become two different ...
Molecular & Computational biology
Dec 15, 2023
2
1197
The genome of single-celled plankton, known as dinoflagellates, is organized in an incredibly strange and unusual way, according to new research. The findings lay the groundwork for further investigation into these important ...
Molecular & Computational biology
Apr 29, 2021
5
375
There's a lot scientists don't know about the pangolin—a peculiar, scaly mammal that looks like a cross between an aardvark and an armadillo. Now, a new paper published in the journal Chromosome Research reveals what UCLA ...
Plants & Animals
May 24, 2023
0
1014
After more than a century of study, mysteries still remain about the process of meiosis -- a special type of cell division that helps insure genetic diversity in sexually-reproducing organisms. Now, researchers at Stowers ...
Cell & Microbiology
Nov 1, 2011
0
0
Scientists have long suspected that the sex chromosome that only males carry is deteriorating and could disappear entirely within a few million years, but until now, no one has understood the evolutionary processes that control ...
Evolution
Jul 17, 2009
11
0
A team of researchers affiliated with several institutions in Argentina has found chromosomal evidence of people living in South America as far back as 18,000 years ago. The group has published a paper describing their work ...
