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

Biology & Microbiology

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

Biology & Microbiology

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

Biology & Microbiology

What produces gene flow?

A) mating between populations B) geographical isolation C) mutation D) speciation

Biology & Microbiology

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

Biology & Microbiology