If a cell that has mutated to show signs of cancer goes through the cell cycle 3 times, how many cancer cells will be produced? (remember - cancer cells divide the same way, they just divide much faster than 'normal' cells)

The human genome project is devoted to mapping the general dna sequence of our species. this could lead to the development of new medicines, as well as the possibility of using gene therapy to treat certain diseases. however, there are some ethical issues surrounding the mapping of individual genomes. one concern is a) that your genes may change over time, making the project useless. b) that insurance companies could discriminate based on genetic make-up. c) that since this has never been done before, we should probably not do it now. d) that sequencing our individual genomes is so expensive, it is a counter-productive strategy.

What is used to keep track of the gamates and possible offsprings combination

What environmental cues and landmarks do the geese use to determine the timing and direction of their migration over the mountains? how do they find their way?