There are significant gaps in our knowledge on the evolution of sex, according to a research review on sex chromosomes from Lund University in Sweden. Even after more than a century of study, researchers do not know enough ...
Evolution
May 26, 2017
7
189
Where would we be without meiosis and recombination? For a start, none of us sexually reproducing organisms would be here, because that's how sperm and eggs are made. And when meiosis doesn't work properly, it can lead to ...
Biotechnology
Jan 23, 2017
0
75
The hamlet fish can be both the father and mother of its offspring – a characteristic that is helping researchers to understand why genes often undergo recombination more readily in one sex.
Cell & Microbiology
Jan 18, 2017
0
161
It turns out that the rigid "line in the sand" over which the human sex chromosomes—-the Y and X—- go to avoid crossing over is a bit blurrier than previously thought. Contrary to the current scientific consensus, Arizona ...
Biotechnology
Mar 23, 2016
1
90
Hotter temperatures are messing with the gender of Australia's bearded dragon lizards, a new study finds.
Ecology
Jul 2, 2015
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457
In many animal species, the chromosomes differ between the sexes. The male has a Y chromosome. In some animals, however, for example birds, it is the other way round. In birds, the females have their own sex chromosome, the ...
Biotechnology
Jun 4, 2015
0
42
Several genes have been lost from the Y chromosome in humans and other mammals, according to research published in the open access journal Genome Biology. The study shows that essential Y genes are rescued by relocating to ...
Biotechnology
May 27, 2015
2
1291
A genetic study of papaya sex chromosomes reveals that the hermaphrodite version of the plant, which is of most use to growers, arose as a result of human selection, most likely by the ancient Maya some 4,000 years ago.
Biotechnology
Mar 17, 2015
0
62
The Y chromosome, that little chain of genes that determines the sex of humans, is not as tough as you might think. In fact, if we look at the Y chromosome over the course of our evolution we've seen it shrink at an alarming ...
Biotechnology
Nov 14, 2014
3
3
An exhaustive effort to sequence the mouse Y chromosome reveals a surprisingly large and complex biological beast, at the same time providing remarkable insight into a heated battle for supremacy between mammalian sex chromosomes.
Biotechnology
Oct 30, 2014
0
0
