Multiple Choice
Grains represent radioactive material within the replicating eye.
-In an experiment,DNA is allowed to replicate in an environment with all necessary enzymes,dATP,dCTP,dGTP,and radioactively labeled dTTP (³H thymidine) for several minutes and then switched to nonradioactive medium.It is then viewed by electron microscopy and autoradiography.The figure above represents the results.
Which of the following is the most likely interpretation?
A) There are two replication forks going in opposite directions.
B) Thymidine is only being added where the DNA strands are furthest apart.
C) Thymidine is only added at the very beginning of replication.
D) Replication proceeds in one direction only.
E) Thymidine is not being incorporated into the DNA, but is associating with the DNA due to hydrogen bonding.
Correct Answer:
Verified
Correct Answer:
Verified
Q2: A biochemist isolates, purifies, and combines in
Q8: It became apparent to Watson and Crick
Q11: What is the basis for the difference
Q16: In analyzing the number of different bases
Q19: After mixing a heat-killed, phosphorescent strain of
Q20: Which enzyme catalyzes the elongation of a
Q31: In a linear eukaryotic chromatin sample, which
Q55: <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB5148/.jpg" alt=" The images
Q57: Eukaryotic telomeres replicate differently than the rest
Q72: Which of the enzymes removes the RNA