Carbon-14 is used to determine the time an organism was living. The amount of carbon-14 an organism has is constant with
the atmosphere, but when an organism dies the carbon-14 decays at a half-life of 5,730 years. If an archeologist measured the
amount of carbon-14 in an organism and it was 25% of the total amount of atmospheric C-14, what is the age of the organism?
1432.5 years
5,730 years
11,460 years
17,190 years

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.