Cell Biology
Category archives for Cell Biology
Men Rendered Obsolete
Posted by Greg Laden on February 10, 2008 Men are largely useless, and worse, detrimental to normal operation of a society. But they have been retained because they were the only known source of sperm. Not any more.
Three-parent embryo formed in lab
Posted by Greg Laden on February 6, 2008 The scientists have created the embryo in the lab Scientists believe they have made a potential breakthrough in the treatment of serious disease by creating a human embryo with three separate parents. [source]
Great microbiologists
Posted by Greg Laden on January 30, 2008 Can you hear me wee beastie? Can you hear me?
Short bacterial protein is surprisingly versatile
Posted by Greg Laden on January 18, 2008 “MIT researchers have discovered why an unusually short bacterial protein can have many more interactions than would normally be expected of something its size.”
Genome Size, Adaptations, Constraints, Exaptations, Aptations, and so on…
Posted by Greg Laden on January 18, 2008 There is a discussion on the internet about Junk DNA, that includes a discussion at Sandwalk (Larry Moran’s blog) … I made a comment there about genome size that was responded to by T.R. Gregory. I started to write my response in Larry’s Little Box, but realized that it would not fit. So it is…
They Found the Ultimate Switch
Posted by Greg Laden on January 13, 2008 Cells do things (or stop doing things) because of internal homeostatic (or other) regulatory mechanisms, or because of communication with the “outside” via receptor sites located on the cell membrane. To get cells to do what we want (produce more or less of a hormone, for instance, or simply to die as in the case…
Lysenko would be so proud…
Posted by Greg Laden on January 9, 2008 A glow in the dark pig has given birth to more glow in the dark pigs.
Lamarckian Mechanism in Ciliates
Posted by Greg Laden on January 7, 2008 A group of scientists … has uncovered a new biological mechanism that could provide a clearer window into a cell’s inner workings…..What’s more, this mechanism could represent an “epigenetic” pathway — a route that bypasses an organism’s normal DNA genetic program — for so-called Lamarckian evolution, enabling an organism to pass on to its offspring…
MIT finds key to avian flu in humans
Posted by Greg Laden on January 6, 2008 From a Massachusetts Institute of Technology press release: researchers have uncovered a critical difference between flu viruses that infect birds and humans, a discovery that could help scientists monitor the evolution of avian flu strains and aid in the development of vaccines against a deadly flu pandemic.
Sodium-Potassium Pump Simulation
Posted by Greg Laden on January 3, 2008 This teaching simulation of the Sodium Potassium pump just showed up in my inbox. Have a look.
Tom and Jess Explore Cells
Posted by Greg Laden on December 24, 2007 differential interference contrast microscopy to visualize cell division
Posted by Greg Laden on December 4, 2007 Supergroup Cell: A Sims simulation teaching cell biology
Posted by Greg Laden on December 3, 2007 Why am I doing this… You may have wondered why I am always putting cell biology videos up on my site. I’m doing it for a few reasons. One is to provide a resource for teachers. Some day in the not too distant future one will be able to enter “cell biology” in the search…
Lipid Rafts and Everything…
Posted by Greg Laden on November 30, 2007 
, which is now available for the 
