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(Encyclopedia) cancer, in medicine, common term for neoplasms, or tumors, that are malignant. Like benign tumors, malignant tumors do not respond to body mechanisms that limit cell growth. Unlike…
(Encyclopedia) crossing over, process in genetics by which the two chromosomes of a homologous pair exchange equal segments with each other. Crossing over occurs in the first division of meiosis. At…
(Encyclopedia) bioethics, in philosophy, a branch of ethics concerned with issues surrounding health care and the biological sciences. These issues include the morality of abortion, euthanasia, in…
HOW DO HORMONES WORK? FIND OUT MOREHormones are control chemicals that trigger major changes in the body. They control many important functions, including body chemistry, growth and sexual…
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