Word: dna
(lookup in dictionary)
(lookup stats)
Dates: during 1990-1999
Sort By: most recent first
(reverse)
Through May 1. Who dunit? The Science of Solving Crime, featuring exhibits on fingerprinting, DNA profiling and forensics...
...talking about the important factor of melanin." Blacks have more melanin -- a skin pigment -- than whites; Jeffries asserts, "It allows us to negotiate the vibrations of the universe and to deal with the ultraviolet rays of the sun." He draws a smaller triangle with "RNA" and "DNA" at the corners and "melanin" on top. Another paradigm...
...class breaks up, students gather around the professor and ask questions. Most are interested in how many papers they will have to write. A reporter asks for a clarification of the DNA-RNA-melanin triangle. "Well, for one thing," Jeffries replies, "you want to have the duality-polarity in life." Two or three students glance about nervously. "There's a mix," he says, and adds, his voice getting softer, "a mix of DNA, RNA, and there's a not-too- understood question of melanin, the organized molecule, in the beginning. And this is the relationship that produces the processes...
Yantiss, a second-year medical student studying molecular biology, is interested in the effects of aging on DNA mutation and repair mechanism...
Scientists have identified a new class of genes -- to be called hedgehogs by convention -- that control a master switch in DNA molecules that tells cells whether they are to become skin, bone or muscle. The new genes are being named for hedgehog species, such as Indian and moonrat. One of them is even called Sonic, after the hedgehog hero of a popular video game...