Under normal circumstances, which of the following is(are) normally sterile environments in mammals?
A. Ureters
B. Urinary bladder
C. Kidneys
D. All of the choices are correct.
Answer: D
You might also like to view...
The Bartlett pear and McIntosh apples are example of commercially important fruits that come from plants produced by ____
a. fragmentation b. tissue culture c. somaclonal selection d. grafting e. apomixes
Each “word” in the mRNA language consists of how
many letters? a. 3 b. 4 c. 5 d. more than 5 e. all of these
Which is NOT one of the three groups of modern
mammals? a. placentals b. therapsids c. marsupials d. monotremes e. pouched
The organization of the lac operon, from upstream to downstream sequences, is represented by:
a. repressor gene -> lacZ -> lacY -> lac A b. lacZ -> lacY -> lac A c. lacZ -> lacY -> lac A -> operator -> promoter d. operator -> promoter -> lacZ -> lacY -> lac A
e. promoter -> operator -> lacZ -> lacY -> lac A