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The first sentence in this article is incorrect when it refers to “a woman’s placenta.” A woman doesn’t have a placenta, nor does any other mammalian mother. The placenta is an organ of the fetus. The mother’s tissue ends at the uterus lining. Bruce S. SibbettSan Bernardino, Calif.
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Colossal Colon Tour
The Colossal Colon is a 40-foot-long, 4-foot-high replica of a human colon. Visitors can crawl through the colon or look through the viewing windows to see healthy colon tissue, colon disease, polyps, and various stages of colon cancer. Under the auspices of the Cancer Research and Prevention Foundation, the giant model will be on display […]
- Tech
Digital Cells
Researchers are gearing up to create cells with computer programs hardwired into the DNA.
