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tapeworm

(Encyclopedia) tapeworm, name for the parasitic flatworms forming the class Cestoda. All tapeworms spend the adult phase of their lives as parasites in the gut of a vertebrate animal (called the…

Hwang Woo-suk, 2005 News

South Korean scientist, suffered a stunning fall from grace in late 2005, when former colleagues and a group of young scientists made a series of disclosures that undermined the advances…

Hwang Woo-suk, 2006 News

South Korean scientist, suffered a stunning blow when former colleagues and a group of young scientists made a series of disclosures that undermined the advances Hwang had claimed to have…

Genetic Engineering: DNA Technology Applications

DNA Technology ApplicationsGenetic EngineeringIntroductionFundamentals of Genetic EngineeringCurrent Recombinant Cloning TechnologyDNA Technology ApplicationsHuman Disorders and Gene TherapyHuman…

State of the Union Address: A Hopeful Society

A Hopeful Society America is a great force for freedom and prosperity. Yet our greatness is not measured in power or luxuries, but by who we are and how we treat one another. So we strive to…

February 2004

WorldIranian Politicians Resign (Feb. 1): About one third of Iran's Parliament steps down to protest move by Guardian Council that barred more than 2,000 reformists from running in…

serotonin

(Encyclopedia) serotoninserotoninsĕrˌətōˈnĭn [key], organic compound that was first recognized as a powerful vasoconstrictor occurring in blood serum. It was partially purified, crystallized, and…

pregnancy

(Encyclopedia) pregnancy, period of time between fertilization of the ovum (conception) and birth, during which mammals carry their developing young in the uterus (see embryo). The average duration…

Clones Aren't Exact Copies

A commonly repeated (or replicated) mistake There is some misunderstanding about what constitutes a clone. A human clone would be the genetic identical twin, a generation or more younger, of the…

May 2005

WorldInsurgents Continue Series of Attacks (May 1): At least 35 Iraqis die in bombings in Mosul and Baghdad. Insurgent attacks have intensified since formation of new government in late April…