#Question id: 4544
#Unit 3. Fundamental Processes
How is the binding of ligand to the extracellular domain communicated to the intracellular domain?
#Question id: 10570
#Unit 6. System Physiology – Plant
The diffusion coefficient (Ds ) is a characteristic of the substance
a) diffusion in liquid is much faster than diffusion in air
b) larger molecules have smaller diffusion coefficients
c) diffusion in air is much faster than diffusion in a liquid
d) Larger molecules have larger diffusion coefficient
Which of the following combination is correct?
#Question id: 18376
#Unit 12. Applied Biology
#Question id: 12621
#Unit 10. Ecological Principles
Often the growth cycle of one population has an effect on the cycle of another. As moose populations increase, wolf populations also increase. Thus, if we are considering the logistic equation for the wolf population,
hich of the factors accounts for the effect on the moose population?
#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?