The mutagens that result in cancer damage dna by (a) destroying the cells p53 gene directly thereby increasing cell production (b) weakening the dna strand or interfering with base pairing (c) altering the cells ph and allowing increased cell productions (d) becoming a virus that attacks dna directly l, impairing duplication

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.

Why are scientists concerned about the depletion of the ozone levels in the stratosphere?

Explain why ecosystem diversity results in species diversity in a healthy biosphere