Why do sister chromatids present at metaphase ii might not be genetically identical to each other?

Where would you expect to see seedless plants, such as ferns and mosses? a. in a botanical museum, because they are all extinct b. low and close to the ground in a moist environment c. climbing high while circling the branches of another plant d. deeply rooted in a forest with a trunk that reaches 20 meters or more

How are mutations continually being generated in a population (what are some of the causes of mutatuions? ) explain

Discuss the functions of epithelial connective nerviud and muscular tissues