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.
The Fisher Ridge Cave System was discovered in January 1981 by a group of Michigan cavers associated with the Detroit Urban Grotto of the National Speleological Society. So far, the cave has been mapped to 117 miles (188 km). In 1976, Rick Schwartz discovered a large cave south of the Mammoth Cave park boundary.