#Question id: 31333
#Unit 5. Developmental Biology
#Question id: 4514
#Unit 3. Fundamental Processes
What is true about coactivators,
A. The coactivators act directly by binding to the DNA
B. The coactivators act indirectly—not by binding to the DNA
C. Are required for essential communication between the activators and the complex composed of Pol II.
D. Are required for essential communication between the and the basal (or general) transcription factors.
#Question id: 13039
#Unit 13. Methods in Biology
#Question id: 1675
#Unit 4. Cell Communication and Cell Signaling
Somatic hypermutation of V genes:
#Question id: 3817
#Unit 3. Fundamental Processes
DNA replication is studied in a newly discovered bacterium. It takes 30 min for the bacterium to complete a round of replication at 37oC. A Meselson-Stahl-type experiment was performed. The bacteria were grown for several generations in 14N-medium and then switched to 15N-medium. The DNA molecules were then analyzed.
If the mechanism of DNA replication in this bacterium were dispersive, what results would be found when the double-stranded DNA was analyzed in a CsCl gradient after two generations in 15N-medium?