England had one allele for hemophilia. in Hemophilia is an X-linked recessive condition in which blood does not clot properly. Queen Victoria of
Most of her male descendants had the disorder, but few females had it. Why did hemophilia occur more frequently in Queen Victoria's male
descendants?

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.