During the replication process, which enzyme(s) unwind(s) the double-stranded DNA? 1.) DNA ligase
2.) DNA polymerase
3.) DNA primase and helicase
4.) DNA gyrase and topoisomerase

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.

Which is a genetic engineering advancement directly related to a career in biotechnology? 1) improving solar energy collection 2) transporting textiles at higher rates 3)creating crop foods that resist insect pests 4)repairing historical sites with quality materials

Which diagram best represents the chromosomes that would be found in a two new skin cells produced as a result of this process?