Chickens eject sperm from males they don't fancy
New research finds that even though hens aren't terribly picky about their mates, they are picky about whose sperm makes it to the egg.
New research finds that even though hens aren't terribly picky about their mates, they are picky about whose sperm makes it to the egg.
Plants & Animals
Aug 25, 2011
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An unexpected discovery about fertilization from the University of Virginia School of Medicine reveals new insights on how sperm and egg fuse and could have major implications for couples battling infertility—and may lead ...
Cell & Microbiology
Nov 14, 2019
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Sparks literally fly when a sperm and an egg hit it off. The fertilized mammalian egg releases from its surface billions of zinc atoms in "zinc sparks," one wave after another, a Northwestern University-led interdisciplinary ...
Biochemistry
Dec 15, 2014
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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
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(PhysOrg.com) -- At fertilization, a massive release of the metal zinc appears to set the fertilized egg cell on the path to dividing and growing into an embryo, according to the results of animal studies supported by the ...
Biochemistry
Jul 22, 2011
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An improved method for sustainable pest control using "super-sexed" but sterile male insects to copulate with female ones is being developed by agricultural researchers at the Hebrew University of Jerusalem. The scientists ...
Plants & Animals
Mar 17, 2010
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Researchers at the Swedish medical university Karolinska Institutet have been able to describe the 3D structure of a complete egg receptor that binds sperm at the beginning of fertilization. The results, published in the ...
Cell & Microbiology
Oct 21, 2010
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Flowering plants naturally know when they need to spare or perish their cells. In a new study reported in Cell, an international group of plant biologists at ITbM, Nagoya University and other research institutes, have examined ...
Cell & Microbiology
Apr 23, 2015
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Time-restricted fasting diets could cause fertility problems according to new research from the University of East Anglia.
Plants & Animals
Apr 11, 2023
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During the development of gametes, such as egg and sperm cells in humans, chromosomes are broken and rearranged at many positions. Using state of the art technology, the research group of Franz Klein, professor for genetics ...
Cell & Microbiology
Aug 9, 2011
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