Word: dna
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Dates: during 1990-1999
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...Gold clan in its glorious maelstrom of neurosis and fierce love for one another. The sets in which the characters sit, argue and agonize are marvelous. A salute should most definitely go to set designer Matthew Lavesque for the just-right yuppie Manhattan apartment, complete with a colorful DNA molecule model perched neatly on the television set--cheap symbolism, but it looks good...
...fellow at Harvard, Ptashne rose to fame after isolating the repressor of lambda phage virus. The lambda virus is able to remain dormant in E. coli bacteria because its repressor binds to the viral DNA, preventing the expression of the genes necessary for viral replication...
Years later, the ABC television network produced a movie detailing the friendly competition between Ptashne and Gilbert at the recommendation of James L. Watson, co-discoverer of the structure of DNA...
...scientists are enthusiastic about testing the proposition by injecting HIV--however weakened--into millions of people who have never been infected. After all, they note, HIV is a retrovirus, a class of infectious agents known for their alarming ability to integrate their own genes into the dna of the cells they infect. Thus once it takes effect, a retrovirus infection--unlike those of viruses that cause measles, smallpox and any number of other diseases--is permanent. While some retroviruses are benign, others can strike without warning. Some remain hidden for years, only to trigger disease later in life when...
...findings, which were published in the journal Nature Genetics, suggest that at least one gene on the X chromosome--and possibly more--influences whether a man becomes homosexual. The same does not appear to hold true for women. Researchers examined the DNA of 36 pairs of lesbian sisters but found no common genetic pattern along the X chromosome...