Women live longer than men. This simple statement holds a tantalizing riddle that Steven Austad, Ph.D., and Kathleen Fischer, Ph.D., of the University of Alabama at Birmingham explore in a perspective piece published in Cell ...
Other
Jun 14, 2016
24
996
Biological sex is typically understood in binary terms: male and female. However, there are many examples of animals that are able to modify sex-typical biological and behavioral features and even change sex. A new study, ...
Plants & Animals
Aug 10, 2020
11
474
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 highly unusual "semi-identical" Australian twins reported last week are the result of a rare event. It's thought the brother and sister (who have identical genes from their mother but not their father) developed from ...
Plants & Animals
Mar 11, 2019
0
10
Sexual reproduction and viral infections actually have a lot in common. According to new research, both processes rely on a single protein that enables the seamless fusion of two cells, such as a sperm cell and egg cell, ...
Cell & Microbiology
Feb 23, 2017
0
597
A new discovery explains what determines the number and position of genetic exchanges that occur in sex cells, such as pollen and eggs in plants, or sperm and eggs in humans.
Cell & Microbiology
Aug 3, 2021
0
783
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
Warmer temperatures are known to make more turtle eggs become female hatchlings, but new research out of Duke University shows that those females also have a higher capacity for egg production, even before their sex is set.
Molecular & Computational biology
Jun 23, 2023
0
1081
Mammals immortalise their genes through eggs and sperm to ensure future generations inherit good quality mitochondria to power the body's cells, according to new UCL research.
Cell & Microbiology
Dec 20, 2016
1
759
Sexually naïve male mice respond differently to the chemical signals emitted by newborn pups than males that have mated and lived with pregnant females, according to a study published March 20 in The Journal of Neuroscience. ...
Plants & Animals
Mar 19, 2013
0
0
