To date it has been unclear exactly how the sex of a bee is determined. A research team from Heinrich Heine University Düsseldorf (HHU) including biologists and chemists has now identified a key gene and the molecular mechanism ...
Plants & Animals
Oct 4, 2023
0
93
In a common metaphor used to describe human fertilization, sperm cells are competitors racing to penetrate a passive egg. But as critics have noted, the description is also a "fairy tale," rooted in cultural beliefs about ...
Social Sciences
Oct 1, 2023
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52
New research provides insight about the bedrock scientific principle that mitochondrial DNA—the distinct genetic code embedded in the organelle that serves as the powerplant of every cell in the body—is exclusively passed ...
Cell & Microbiology
Sep 18, 2023
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356
Sperm play a critical role in the creation of new life, delivering essentially half of the genetic material required.
Cell & Microbiology
Jul 31, 2023
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42
Researchers, led by Dr. Li Hongju from the Institute of Genetics and Developmental Biology (IGDB) of the Chinese Academy of Sciences, have revealed that the female gamete in flowering plants controls fertilization recovery ...
Plants & Animals
Jul 28, 2023
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2
New research looks at navigation strategies for deformable micro-swimmers in a viscous fluid faced with drifts, strains, and other deformations.
Bio & Medicine
Jul 21, 2023
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2
Taste receptors for bitter substances are not only found on the tongue but also on cells outside the oral cavity. As a new study by the Leibniz Institute for Food Systems Biology at the Technical University of Munich now ...
Evolution
Jul 3, 2023
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37
In a study published in Nature Communications, researchers from Osaka University have furthered our understanding of sperm maturation. A deeper understanding of this mysterious phenomenon could potentially lead to new male ...
Cell & Microbiology
May 11, 2023
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76
Life existed without human beings for more than 99.9% of Earth's history. Yet we often ignore the achievements of species that preceded us by billions of years.
Plants & Animals
Apr 19, 2023
0
14
Sperm must swim swiftly to an egg in order to fertilize it, and so they have evolved hydrodynamic shapes. Most of the space in the head of sperm cells is taken up by the DNA they carry, so the cells coil up their DNA super ...
Cell & Microbiology
Apr 11, 2023
0
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