You are studying a cell structure that is approximately 100 nm in size. Which of the following provides the greatest magnification you can use to see this structure? a. phase-contrast microscope
b. scanning electron microscope
c. transmission electron microscope
d. brightfield microscope
e. darkfield microscope

Which blood cell spend most of their time in the lymphatic system?

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 phase of the cell cycle ensures that identical copies of the dna are made for daughter cells?