A(n) is a pattern of dark bands on photographic film that is made when dna fragments are separated by gel electrophoresis and tagged. the photograph produced is often used to determine whether or not suspects were involved in a crime. a) rna pattern b) dna fingerprint c) human replicant d) allele impressionple bonds on the carbon atoms.

Which of the following will not cause mass extinction? a. drastic change is weather b. geological change c. both a and b d. none of the above

What would most likely happen to a unicellular organism if it was exposed to a hypotonic solution for an extended period of time?

Which of the following best describes the purpose of the parathyroid hormone? a. it decreases the blood calcium level and decreases blood phosphorus level. b. it decreases the blood calcium level and increases the blood phosphorus level. c. it increases the blood calcium level and increases blood phosphorus level. d. it increases the blood calcium level and decreases blood phosphorus level.