What evidence was found from soft tissue samples of a remarkable well-preserved tyrannosaurus rex that provided molecular evidence linking t. rex to a chicken? a. antibodies that react in a specific way with chicken proteins reacted in the same way with t. rex proteins. b. oxygen was found to be essential to t. rex’s survival in the same way that it is essential to a chicken’s survival. c. t. rex cell structure was found to be similar to the cell structure of chickens. d. t. rex cells were found to use glucose as a source of energy just like a chicken’s cells use glucose.

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.