One way that cells communicate with one another is through the secretion and uptake of extracellular vesicles (EVs). EVs convey a multitude of cargoes, including proteins, lipids and nucleic acids. Their uptake affects the ...
Biochemistry
Jan 19, 2024
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64
(Phys.org)—From a single-cell egg to a fully functional body: as embryos develop and grow, they must form organs that are in proportion to the overall size of the embryo. The exact mechanism underlying this fundamental ...
Cell & Microbiology
Dec 20, 2012
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0
Mature spermatozoa are characterized by a head, midpiece and a long tail for locomotion. Now, researchers from the University Hospital Bonn (UKB) and the Transdisciplinary Research Unit "Life & Health" at the University of ...
Cell & Microbiology
Oct 27, 2023
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5
Design redundancy is not only an invention of engineers for building machines, but also a principle of nature for designing organisms. This principle is at play in the regulation of the genes responsible for directing stem ...
Evolution
Jul 13, 2020
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33
Scientists in Canada and the United States have used three-dimensional imaging techniques to settle a long-standing debate about how DNA and structural proteins are packaged into chromatin fibres. The researchers, whose findings ...
Biotechnology
Oct 4, 2012
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0
In a study that could alter traditional notions in the fields of ecology and evolutionary biology, three City College of New York researchers present results indicating that competition between two species can lead to the ...
Ecology
Aug 27, 2014
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0
An exhaustive effort to sequence the mouse Y chromosome reveals a surprisingly large and complex biological beast, at the same time providing remarkable insight into a heated battle for supremacy between mammalian sex chromosomes.
Biotechnology
Oct 30, 2014
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0
Why is it that some species seem to be particularly attentive parents while others leave their young to fend for themselves? For years, scientists have believed one of the major drivers was experience - an animal raised by ...
Biotechnology
Apr 19, 2017
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19
Johns Hopkins researchers report that a new study of mouse cells has revealed reasons why attempts to grow stem cells to maturity in the laboratory often fail, and provided a possible way to overcome such "developmental arrest."
Cell & Microbiology
Nov 12, 2015
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30
Scientists at Cincinnati Children's appear to have flipped another piece in the underexplored puzzle of male infertility.
Cell & Microbiology
Oct 26, 2021
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