If someone is born with a defective gene, it will be found in a. all DNA in their body

b. in some cells

c. only their nervous system

The small molecule cyclic amp (camp) takes about 0.2 second to diffuse 10 μm, on average, in a cell. suppose that camp is produced near the plasma membrane on one end of the cell; how long will it take for this camp to diffuse through the cytosol and reach the opposite end of a very large cell, on average? assume that the cell is 200 μm in diameter.

These are the components of the reservoirs of carbon that are exchanged in our environment.

The smallest biological units that can evolve are