DNA condensation of the duplicated chromosomes during cell division (mitosis or meiosis) results either in a four-arm structure (pictured to the right) if the centromere is located in the middle of the chromosome or a two-arm structure if the centromere is located near one of the ends.
Boyds Cave is a 0.7 mile moderately trafficked loop trail located near Bend, Oregon that features a cave and is good for all skill levels. The trail is primarily used for hiking, walking, and horses and is accessible year-round. Dogs are also able to use this trail but must be kept on leash. 0.7 miles 49 feet Loop.
Mammoth Cave National Park is a U.S. national park in central Kentucky, encompassing portions of Mammoth Cave, the longest cave system known in the world. Since the 1972 unification of Mammoth Cave with the even-longer system under Flint Ridge to the north, the official name of the system has been the Mammoth-Flint Ridge Cave System. The park was established as a national park on July 1, 1941.