Your research project involves the characterization of a recently identified transcription factor. As part of your project, you want to determine if this transcription factor binds directly to any of the general transcription factors. Unfortunately, you are having trouble expressing the full-length protein. What approach may help achieve your research goal?
A. You must find a way to express the full-length protein, since transcription factor functions do not lie in separate domains.
B. Express and purify only the DNA-binding domain, and test for binding.
C. Identify the RNA that mediates the protein-protein binding.
D. Express and purify only the activation domain, and test for binding.
Answer: D
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a) no b) red c) white d) black e) pink
The term aerobic means:
A) ATP-dependent. B) oxygen-independent. C) oxygen-dependent. D) carbon dioxide-dependent.
The ribosomal RNA studies that led to the division of prokaryotic organisms into the Bacteria and the Archaea were begun by
A. Watson. B. Pasteur. C. Woese. D. Needham.
Solutions that are isotonic:a
are not in dynamic equilibrium. b. have equal concentrations of solute and water. c. have equal concentrations of solute but not water. d. have equal concentrations of water but not solute. e. will exhibit a net movement of water from one solution to the other.