Binary fission

In biology, binary fission is the sexual reproductive process used by prokaryotes.

It begins when the DNA of the cell is duplicated. Each circular strand of DNA then attaches to the plasma membrane, which grows inwards and splits the cell into two daughter cells.

See also: cell cycle -- cell division -- cytokinesis.



In the News

[Scary] Pregnant woman says 'maternal instinct' helped her kill attack
FORT MITCHELL, Ky. - A pregnant woman who killed her attacker said a maternal instinct helped her fight off the woman who investigators believe was after her unborn child."I do believe that I fought harder because it was for my child,"Sarah Brady told ABC's "Good Morning America"in interviews aired Sunday and Monday. "It is a maternal instinct to protect your child to the very end."Katherine Smith, 22, died Thursday after luring Brady to her apartment to pick up a package supposedly delivered to the wrong address. When Smith pulled out a knife and attacked the pregnant woman, Brady fought back, striking Smith on the head with an ash tray and stabbing her three times with her own knife, police said. Brady, 26, said she didn't know Smith before the two met at Smith's apartment and can't be certain why Smith wanted to kill her."I really am not sure what was going through her mind,"Brady told ABC. "The only thing I thought was that she was going to kill me and my child and that is the only thing that ran through my mind."

Patients With Moderate To Severe Periodontitis Need Evaluation For Hea
Patients with moderate to severe periodontitis should receive evaluation and possible treatment to reduce their risk of atherosclerotic cardiovascular disease, according to a special consensus paper.

From Clinical Cancer Research: Rethinking Therapeutic Cancer Vaccine T
Ongoing therapeutic cancer vaccine trials have yet to show evidence of vaccines spurring a patient's immune system to shrink tumors -- yet patients who receive these vaccines in trials tend to live longer and respond better to subsequent treatment. In the July 1 issue of Clinical Cancer Research, a journal of the American Association for Cancer Research, a team of National Cancer Institute researchers asks a fundamental question: are we looking at cancer vaccine trials the wrong way?

A Molecular Basis For Selective Therapeutic Intervention In Alzheimer'
The contribution of University of Aveiro researchers to the complex theme of how 'Cellular stress affects phosphorylation dependent AßPP processing' showed that, even under conditions of cellular stress, one could favour non-toxic AßPP processing by modulating intracellular protein phosphorylation systems and this, in turn, may constitute the basis for selective therapeutic intervention.

[Ironic] Professional beggars prowling about the streets of Moroccan c
The government plans to crack down on the scam used by faux beggars in growing numbers for a kind of "emotional blackmail", a cabinet minister was quoted as saying...

'Greener' Stain-resistant Coatings Developed
When it comes to fighting stains, "greener"is better. Chemists at the University of North Carolina at Chapel Hill say they have developed an alternative material for making stain-resistant coatings that does not lead to the production of PFOA, a pervasive chemical that has been termed a "likely carcinogen"by an EPA advisory board. Their study will be presented on August 29th at the national meeting of the American Chemical Society in Washington, D.C.

New Year's Resolutions for Coders
Need some spiritual guidance for that first programming project of 2007? Consult our list of resolutions for scripters and web geeks. In Monkey Bites.

Google Sponsors Lunar X PRIZE To Create A Space Race For A New Generat
The X PRIZE Foundation and Google Inc. announced on September 13 the Google Lunar X PRIZE, a robotic race to the Moon to win a $30 million prize purse. Private companies from around the world will compete to land a privately funded robotic rover on the Moon that is capable of completing several mission objectives, including roaming the lunar surface for at least 500 meters and sending video, images and data back to the Earth.

Minimally invasive surgery removes sinus tumor without facial disfigur
With the advances in sinus endoscopy, many tumors can now be removed directly through the nose, avoiding the need for facial incisions or a craniotomy. Complications are decreased and recovery is faster.

Best Energy Strategy: Small, Green And Local, Experts Say
The wisest energy strategy for the United States and other countries facing similar challenges is to move away from their reliance on large-scale centralized coal and nuclear plants, and instead, invest in renewable energy systems and small scale decentralized generation technologies. These alternative technologies are simultaneously feasible, affordable, environmentally friendly, reliable and secure.




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