Suppose a region of DNA is 100 bp long. How many unique sequences could it potentially represent?
A) 1004
B) 4100
C) 400
D) 4,000
E) 10,000
B) 4100
You might also like to view...
Which of the following describes the second step in a DNA polymerase reaction?
A. The 3'-OH attacks the ? phosphorus of the incoming dNTP. B. Pol I translocates, positioning the newly added nucleotide in the postinsertion site. C. Incoming dNTP enters the insertion site. D. PPi is hydrolyzed by pyrophosphatase to prevent the back reaction. E. After translocation, the insertion site is now available for entry of the next dNTP.
In skeletal muscle contraction, which of the following is the neurotransmitter released at the axon
terminal to trigger an action potential in the muscle cell?
a. troponin b. Ca2+ c. tropomyosin d. ATP e. acetylcholine
Which of the following is NOT a recycled
element of an ecosystem?
a. water b. phosphorous c. oxygen d. energy e. more than one of these
Yeast can grow ________
A) under aerobic conditions only B) under anaerobic conditions only C) under both aerobic and anaerobic conditions D) only in the presence of glucose and aerobically E) only in the presence of lactose and anaerobically