In 2000, 87% of the wild rat populations in Stadtlohn, Germany was resistant to the poison bromadiolone. This
indicates that ____was/were commonly used as a rat poison(s) here, and the rat's resistance is an example of ____
selection.
a. warfarin; directional
b. bromadiolone; directional
c. both warfarin and bromadiolone; disruptive
d. neither warfarin nor bromadiolone; stabilizing
e. bromadiolone; disruptive
ANSWER: b
You might also like to view...
When yeast cells of the "a" mating type are exposed to a solution of "? pheromones
A) those yeast cells will undergo cell division B) actin filaments will form a cleavage furrow in the yeast cells C) the yeast cells will fuse with each other D) G proteins will be activated in the cell signaling pathway and the yeast cells will change shape E) those yeast cells will undergo DNA replication
Which of the following terms describes the process by which a fertilized egg develops into a multicellular organism with hundreds of different cell types, each with different structures and functions?
A. adhesion B. differentiation C. communication D. embryology
What produces gene flow?
A) mating between populations B) geographical isolation C) mutation D) speciation
From the list BELOW, which of the following is the most logical sequence of steps for splicing foreign DNA into a plasmid and inserting the plasmid into a bacterium?
1. Transform bacteria with recombinant DNA molecule 2. Cut the plasmid DNA using restriction enzymes 3. Extract plasmid DNA from bacterial cells 4. Hydrogen-bond the plasmid DNA to nonplasmid DNA fragments 5. Use ligase to seal plasmid DNA to nonplasmid DNA A) 4, 5, 1, 2, 3 B) 3, 2, 4, 5, 1 C) 3, 4, 5, 1, 2 D) 2, 3, 5, 4, 1 E) 1, 2, 4, 3, 5