Continental rise is the bottom feature of water that is composed of thick sequences of continental substances that coalesced between the continental slope and the deep ocean floor. Continental rises occurs due to three sedimentary processes which are vertical accumulation of biogenic and clastic substances, mass wasting and the deposition from contour currents.
Submarine canyons are deep, narrow steep-sided valleys that emanate from the continental slope and sometimes may extend to the ocean basin floor (continental shelf). The physical appearance of submarine canyons resembles canyons formed by rivers on land.
Karyotypes can be used to screen for and confirm chromosomal abnormalities such as Down's syndrome, and there are several different types of abnormalities which may be detected.
