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Only 12 hours after an egg cell is fertilized by a sperm cell, the egg cell starts to divide. As it continues to divide, it moves along the fallopian tube toward the uterus at about 1 inch per day.
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The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").
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Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.
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All adults should have their cholesterol levels checked once every 5 years. During 2009–2010, 69.4% of Americans age 20 and older reported having their cholesterol checked within the last five years.
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There are more nerve cells in one human brain than there are stars in the Milky Way.