1. What is the end result of using the technique known as polymerase chain reaction (PCR) on a DNA fragment?
A. A pattern of gene fragments separated by size
B. The sequence of the entire genome of an organism
C. Many copies of a DNA fragment
D. A single, large protein molecule

and i oop

explanation:

above statement is not a true statement about the open ocean because the open ocean has low levels of nutrients. most of the photosynthetic activity on earth occurs in the open ocean within the photic zone. organisms in the deep ocean are exposed to frigid temperatures and total darkness but it does not begin at the low-tide mark.