Which of the following organelles contain DNA? (Select all correct choices.)
A. the nucleus
B. the ribosome
C. mitochondria
D. chloroplasts
A,C,D
You might also like to view...
Spontaneous development of resistance to a particular antimicrobial is difficult if the drug
A. binds to several sites on the target molecule. B. targets several different molecules. C. affects only one molecule. D. affects the plasma membrane. E. binds to several sites on the target molecule AND targets several different molecules.
The toxin of Vibrio cholerae causes severe diarrhea because it ____
a. modifies DAG and activates a cascade of protein kinases b. activates phospholipase to produce inositol triphosphate c. decreases the cytosolic concentration of Ca++ d. modifies a G protein involved in regulating salt and water secretion e. binds with adenylyl cyclase and triggers formation of cAMP
Hosts who do not display disease symptoms but who nevertheless are infected and can spread infection are referred to as __________.
Fill in the blank(s) with the appropriate word(s).
Through which process are bacteria able to exchange genetic material?
A) Sexual reproduction B) Photosynthesis C) Conjugation D) Anaerobic respiration E) Endospore formation