The basic components of a mature mammary gland are thealveoli<span> (hollow cavities, a few millimeters large) lined with milk-secreting cuboidal cells and surrounded by myoepithelial cells. These </span>alveoli<span> join to form groups known as </span>lobules. Eachlobule<span> has a lactiferous duct that drains into openings in the</span>nipple<span>.
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genes are the building blocks for proteins
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Antibiotics are compounds produced by bacteria and fungi which are capable of killing, or inhibiting, competing microbial species. ... But it was not until 1928 that penicillin, the first true antibiotic, was discovered by Alexander Fleming, Professor of Bacteriology at St.
