Of the estimated 2 million heroin users in the United States, 600,000–800,000 are considered hardcore addicts. Heroin addiction is considered to be one of the hardest addictions to recover from.
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Colchicine is a highly poisonous alkaloid originally extracted from a type of saffron plant that is used mainly to treat gout.
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Asthma cases in Americans are about 75% higher today than they were in 1980.
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The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
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About 3% of all pregnant women will give birth to twins, which is an increase in rate of nearly 60% since the early 1980s.
The molecular basis of genetic complementation
THE SEASONS OF CANCER SURVIVAL
Genetic Inheritance
Experiments that showed DNA to be the genetic substance
genetic code From Gene to Protein
Crossing over in prophase I increases genetic variation