(Phys.org)—New research reveals what happens when swimming cells such as spermatozoa and algae hit a solid wall, and has implications for applications in diagnostics and biofuel production.
Cell & Microbiology
Jan 8, 2013
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(Phys.org)—The traditional genome sequencing process requires thousands of cells (or more) to provide sufficient DNA, and this means that variations that are only present in a small number of cells―such as early cancer ...
It is well known that many mammals are able to adjust the ratio of male and female young depending on the surrounding conditions at the time of conception. A recent study in the group of Christine Aurich at the University ...
Plants & Animals
Dec 18, 2012
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An increasing number of men suffer from fertility problems, especially in western society. The general belief is that many problems may be related to stress but it is possible that some of them may arise because men simply ...
Plants & Animals
Dec 4, 2012
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To discover why Neandertals are most closely related to people outside Africa, Harvard and Max Planck Institute scientists have estimated the date when Neandertals and modern Europeans last shared ancestors. The research, ...
Archaeology
Oct 4, 2012
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During embryonic development in humans and other mammals, sperm and egg cells are essentially wiped clean of chemical modifications to DNA called epigenetic marks. They are then held in reserve to await fertilization.
Biotechnology
Sep 20, 2012
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Using a stepwise trans-differentiation process, Whitehead Institute researchers have turned skin cells into embryonic Sertoli-like cells.
Cell & Microbiology
Sep 6, 2012
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Sperm swim, lung cells sweep mucus away, and the cells in the female Fallopian tube move eggs from the ovary to the uterus. Underlying these phenomena are flagella – slender, hair-like structures extending from the surface ...
Cell & Microbiology
Aug 13, 2012
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Researchers reporting in the April 27 issue of the journal Cell have devised a new and improved method for producing genetically modified animals for use in scientific research. The method relies on haploid embryonic stem ...
Cell & Microbiology
Apr 26, 2012
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A study in The Journal of Cell Biology describes how a secreted enzyme helps egg cells avoid being fertilized by more than one sperm.
Cell & Microbiology
Apr 2, 2012
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