New research by a scientist at the Milner Center for Evolution at the University of Bath suggests that "selfish chromosomes" explain why most human embryos die very early on. The study, published in PLoS Biology, explaining ...
Molecular & Computational biology
Jul 5, 2022
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2235
(Phys.org)—A new study in the U.S. shows that fruit flies lay their eggs on a food source with a high alcohol content if they see parasitic wasps in the area, instead of a non-alcohol food.
Five years ago, researchers at Northwestern University made international headlines when they discovered that human eggs, when fertilized by sperm, release billions of zinc ions, dubbed "zinc sparks."
Materials Science
Jul 8, 2021
0
2101
A woman's supply of eggs is finite, so it is crucial that the quality of their genetic material is ensured. New work from Carnegie's Marla Tharp, Safia Malki, and Alex Bortvin elucidates a mechanism by which, even before ...
Biotechnology
Jan 16, 2020
0
172
Sometimes disproving an old hypothesis is as important as proving a new one. In a new paper in Nature, Cassandra G. Extavour manages to do both, while helping create a tool that will enable similar big-data studies moving ...
Evolution
Jul 4, 2019
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0
The waters around India, Bangladesh and Sri Lanka are home to the world's most endangered sea turtles, according to a study released Thursday aimed at setting a blueprint for global conservation.
Ecology
Sep 29, 2011
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0
German researchers have demonstrated for the first time why the molecular cocktail responsible for generating stem cells works. Sox2 and Oct4 are proteins whose effect on cells resembles that of an eraser: They remove all ...
Cell & Microbiology
Aug 19, 2013
0
0
A study in The Journal of Cell Biology describes how a secreted enzyme helps egg cells avoid being fertilized by more than one sperm.
Cell & Microbiology
Apr 2, 2012
0
0
A new study led by Harvard School of Public Health (HSPH) and University of Perugia (UNIPG) researchers has shown that egg development in the mosquito species primarily responsible for spreading malaria depends on a switch ...
Cell & Microbiology
Oct 29, 2013
0
0
When a sperm and an egg cell merge a new life begins. This is the case in humans and in animals, but in principle also in plants. A German-Israeli team led by the biologists Professor Ralf Reski from Freiburg and Professor ...
Biotechnology
Jan 18, 2016
0
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