RIKEN researchers have shown how the genomic sorting that occurs during fertilization—the incorporation of genomic material from both parents and the elimination of excess maternal DNA from the egg—takes place in mice. ...
Cell & Microbiology
Nov 26, 2021
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100
Ellie is an 11-year-old chestnut mare with a fetching white stripe on her face, and she's about as loved as any horse could be.
Veterinary medicine
Mar 30, 2023
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1
The competition is fierce and only the strongest survive the obstacle course within the female reproductive tract. Of the millions of sperm that enter the vagina, only about 10 or so make it to the oocyte or egg, demonstrating ...
Biotechnology
Jun 16, 2016
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8
Scientists from the University of Twente have devised a technique to find the optimal sperm cell. The researchers have demonstrated that a single sperm starts moving its tail faster as the temperature rises, while this movement ...
Cell & Microbiology
Jul 11, 2016
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10
Scientists from UH Mānoa have uncovered substantial new knowledge about the function of the Y chromosome gene.
Biotechnology
Jan 6, 2016
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3
The female genital tract can be a hostile environment for conception. Out of about 100 million sperm, only a few hundred make it to the fallopian tubes. Guided by a directional movement called rheotaxis, sperm cells swim ...
Biochemistry
Mar 31, 2022
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27
Scientists from Berlin successfully produced embryos from African lions via assisted reproduction. What is genuinely new is the fact that they used immature eggs that were retrieved from African lionesses. After artificial ...
Plants & Animals
Feb 9, 2015
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44
Monash University researchers have combined acoustic waves and fluid dynamics to create a new approach for separating high-quality sperm in assisted reproduction—opening new windows for infertile couples to have a family ...
Analytical Chemistry
Dec 7, 2020
1
16
A University of Queensland-led research group has created the world's first successful donkey embryo using in-vitro fertilization (IVF), which could save dozens of endangered donkey species.
Veterinary medicine
Nov 16, 2022
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30
The recent birth of two test tube foals in the UK, as part of a collaborative project conducted by leading fertility experts, could help benefit rare breed conservation and horses with fertility problems.
Plants & Animals
Oct 21, 2015
0
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