Think about a signal transduction pathway leading to the cell dividing.
a) Start with a tyrosine kinase. What is the function of the tyrosine kinase?
b) The next set of elements use GDP/GTP to signal ‘down the line'. How are they used?
c) The last is a transcription factor, such as myc. This will turn on a series of genes. What is the general purpose of the genes it activates?