Colchicine is a poison that acts to inhibit th
inhibit the development of spindle fibers. Describe the effects on
mitosis in a cell that has been treated with colchicine
whatdienipt various parts of the cell cycle, targeting rapidly grow

How is ribosomal rna useful as a molecular clock? a. a large portion of the dna ring is not vital to structure or function, allowing it to accumulate neutral mutations. b. its rate of mutation increases over time as organisms continue to evolve and differentiate from each other. c. a slow mutation rate makes it useful for determining evolutionary relationships between ancient species. d. it is only found in select organisms, making it easier to compare relationships between species that have it.