How many unique STR regions does the FBI use in forensic analysis?
A) 1
B) 5
C) 13
D) 50
E) 100+
C
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Biologists sometimes damage ecosystems in order to study them. For example, researchers have fogged rainforest
trees with insecticides to search for undiscovered species that fall to the ground when poisoned. Others have deliberately added phosphates to natural lakes to study the eutrophication process. What is your ethical position on such studies? Should they be banned, or is the knowledge gained worth the harm they cause?
What will be an ideal response?Pheromones ____
a. are signaling molecules that are used for olfactory communication between two different species b. are only used by invertebrates c. require a vomeronasal organ to be detected d. are signaling molecules used for olfactory communication between members of the same species e. are signaling molecules geese use for navigation
All living organisms
a. generate ATP. b. utilize oxygen. c. have a well-defined nucleus. d. produce carbon dioxide. e. generate ATP and respire.
In recombinant DNA technology, a YAC is an enzyme isolated from a large South American, four-legged mammal
Indicate whether the statement is true or false