The deletion of the Wt1 gene during the early stages of the embryonic reproductive organ formation leads to differences in sex development in adult mice, according to an article published in the journal PLOS Genetics and ...
Cell & Microbiology
Jun 22, 2022
0
3
Scientists have struggled to fully understand how male sperm cells function and why they sometimes fail to fertilize female eggs, which has implications for both livestock farmers aiming to maximize food production, as well ...
Cell & Microbiology
Jun 13, 2022
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27
Everyone considers sperm to be made exclusively by males. Well, it turns out that females also contribute to what makes a sperm a sperm.
Molecular & Computational biology
Mar 8, 2022
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309
A new study reveals how sperm change their swimming patterns to navigate to the egg, shifting from a symmetrical motion that moves the sperm in a straight path to an asymmetrical one that promotes more circular swimming.
Cell & Microbiology
Nov 1, 2021
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672
Female tree skinks can reproduce even when they have not encountered a male for more than a year, by storing sperm from previous mates, according to new research.
Plants & Animals
Sep 23, 2021
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132
Mammalian sperm cannot fertilize an egg from the get-go. It's an ability acquired only after insemination, during passage through the female reproductive tract, and requires two consecutive, time-sensitive processes to provide ...
Cell & Microbiology
Aug 20, 2021
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415
A research team at the Humboldt University Berlin and the Leibniz Institute for Zoo and Wildlife Research (Leibniz-IZW) developed an agent-based computer model to simulate the journey of sperm cells through the female genital ...
Plants & Animals
Jul 15, 2021
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10
A team of researchers from Uppsala University, the University of Cincinnati and the University of Toronto has found that there are benefits for female seed beetles mating with males with extra-long spiny genitalia. In their ...
Millions of sperm enter the race to fertilize, but only one wins the sprint to the egg.
Cell & Microbiology
Dec 1, 2020
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5
A protein called CatSper1 may act as a molecular 'barcode' that helps determine which sperm cells will make it to an egg and which are eliminated along the way.
Cell & Microbiology
Dec 1, 2020
0
7
