If DNA replication were fully conservative, how many intact parental double helices would have been detected in Meselson and Stahl's experiment after three rounds of replication?
A) 7 B) 3 C) 8 D) 0 E) 1
Answer: E
You might also like to view...
Drugs that are HIV protease inhibitors
A. prevent HIV protease from degrading host cell proteins. B. block the translation of HIV proteases. C. bind to HIV proteases. D. prevent HIV proteases from breaking apart capsid proteins. E. both bind to HIV proteases and prevent them from breaking apart capsid proteins.
You have a patient who complains of pain in his joints. You ask whether he drinks much water during the day and find out he does not. You therefore suspect conversion of his usual nitrogenous waste ___________ into ____________, followed by deposition into his joints.
A. ammonia, urea B. urea, ammonia C. uric acid, urea D. urea, uric acid E. uric acid, ammonia
A very agile seabird used in Japan to help catch fish is called:
a. a stilt. b. a albatross. c. a cormorant. d. a gull. e. an oystercatcher.
An action potential is brought about by
a. a sudden membrane impermeability. b. the movement of negatively charged proteins through the neuronal membrane. c. the movement of lipoproteins to the outer membrane. d. a local change in membrane permeability caused by a greater-than-threshold stimulus. e. the movement of negatively charged amino acids through the neuronal membrane