Seymour Benzer's fine structure studies of genomes used mutations found in specific regions of what kind of genome?
What will be an ideal response?
bacteriophage (phage)
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The absence of a band when the linker is present at about -25 indicates that
A. This region is critical for the in vitro transcription reaction B. this region is not critical for the in vitro transcription reaction C. it is not possible to determine if this region is critical for in vitro transcription D. the linker interfered with transcription Bloom's Level:
Choose the observations supporting the hypothesis that the initiation of eye development in animals occurred only once.
_____ In some organisms, Pax6-related genes are associated with development of the forehead. _____ A large number of different organisms use Pax6-related genes in eye development. _____ The DNA sequence of Pax6-related genes in animals is uniformly similar. _____ The common ancestor of animals had a complex eye.
The energy source that powers the process of photosynthesis is
A. water. B. oxygen. C. sunlight. D. carbon dioxide. E. glucose.
A pure culture is composed of cells that arise from a single (cell/inoculum/sample)
What will be an ideal response?