(PhysOrg.com) -- It is widely believed that women live long post-reproductive lives to help care for their grandchildren. According to the "Grandmother Hypothesis," post-menopausal women can increase their genetic contribution ...
Evolution
Oct 29, 2009
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Thus far, a tiny finger bone and two back teeth in a cave in the Altai Mountains are the only known remains of the Denisovans – a humanoid that Max Planck researchers have identified solely through their genetic material. ...
Archaeology
Sep 3, 2012
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It was long thought that during an embryo's first cell division, one spindle is responsible for segregating the embryo's chromosomes into two cells. EMBL scientists now show that there are actually two spindles, one for each ...
Cell & Microbiology
Jul 12, 2018
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165
It's not often that you see genetic systems described as "bizarre" in the title of a scientific research paper. That is unless it's from the lab of San Francisco State University Associate Professor of Biology Scott Roy, ...
Evolution
Jul 1, 2022
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66
University of Warwick scientists have discovered a "nourishing gene" which controls the transfer of nutrients from plant to seed - a significant step which could help increase global food production.
Biotechnology
Jan 13, 2012
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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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From avocado plants to baker's yeast, humans to zebras, sexually reproducing organisms must create germ cells that contain half the number of chromosomes found in a typical body cell. When these germ cells—such as sperm ...
Cell & Microbiology
May 6, 2020
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125
A new study reveals that - contrary to decades of evolutionary thought - chromosome regions that are prone to breakage when new species are formed are a rich source of genetic variation.
Cell & Microbiology
Apr 23, 2009
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Why are some hybrids viable and others not? It is known that this depends on the father species and the mother species. New research in two related frog species shows the influence of mother and father species: One hybrid ...
Plants & Animals
Jan 11, 2018
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Whether radiation exposure of fathers can have consequences on their children is one of the most long-standing questions in radiation biology. Using the nematode Caenorhabditis elegans as a model, Professor Dr. Björn Schumacher ...
Molecular & Computational biology
Dec 21, 2022
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