Which of the following is not a part of dna extraction?
a. separate dna from protein and debris
b. isolate concentrated dna
c. collect cheek cells
d. add enzymes to make the dna "sticky"
e. burst cells open

The body is protected against harmful flu viruses by

Compare and contrast region e in the illustration above with region d. describe the physical characteristics of each region.

The fish shown above is a tarpon. it is a fast-swimming and powerful open-water fish. its closest relatives, oddly, are burrow-dwelling conger eels that stay on the bottom. both eels and tarpon developed from snake-like larvae that float in the plankton during the first stages of life. once they mature, tarpon and eels are not found near one another in the ocean. the tarpon and the eel illustrate all of the following except