text: The protein VIVID regulates this organism's response to blue light, which is mediated in part by the WHITE COLLAR complex.
full_question: The protein VIVID regulates this organism's response to blue light, which is mediated in part by the WHITE COLLAR complex. In one mechanism discovered in this organism, duplicated DNA sequences are removed during a sexual cross via the accumulation of numerous G:C to A:T mutationsthat mechanism is repeat-induced point mutation. This organism's frq or "frequency" gene codes for a well-studied circadian clock protein. Its wild-type strains include Mauriceville and Oak Ridge. This organism has a haploid life cycle with 7 chromosomes, and it generates an ordered tetrad during meiosis. In a landmark experiment, X-ray-induced mutants of this organism were grown in various "minimal" and "complete" media, showing that all of the mutants that could not grow in minimal media were able to grow successfully with the addition of a single nutrient, such as biotin or thiamine. For 10 points, name this bread mold, a model organism used by George Beadle and Edward Tatum to come up with the one-gene one-enzyme hypothesis.
first_sentence: The protein VIVID regulates this organism's response to blue light, which is mediated in part by the WHITE COLLAR complex.
raw_answer: Neurospora crassa [or N. crassa, prompt on "bread molds"]