Which occurs during both DNA replication and protein production? O RNA leaves the nucleus.
O DNA leaves the nucleus.
O RNA unzips.
O DNA unzips.

About __ of the mass of the cell is water

The polio virus can cause skeletal muscle paralysis by destroying neuron cell bodies. what area of the spinal cord is destroyed

The model illustrates a process by which a substance is taken up by a cell. which statements describe the process? a. the model shows the process of endocytosis. b. the process shown in the model requires energy from the cell. c. the cell membrane in the model remains intact throughout the process. d. the model shows the process of facilitated diffusion.