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Welcome to the Science Quiz 68
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This is a timed quiz. You will be given 15 seconds per question. Are you ready? 15
In the Meselson-Stahl experiment, which model of DNA replication was eliminated by the analysis of DNA isolated from bacteria one replication cycle after shifting from 15N to 14N medium ?
Correct!
Wrong!
The two polynucleotide chains in DNA are:
Correct!
Wrong!
A nucleic acid was analyzed and found to contain 32 percent A, 18 percent G, 17 percent C, and 33 percent T. The nucleic acid must be:
Correct!
Wrong!
DNA is a polymer of:
Correct!
Wrong!
Which of the following are pyrimidines?
Correct!
Wrong!
A nucleic acid was analyzed and found to contain 37 percent A, 16 percent G, 22 percent C, and 25 percent T. The nucleic acid must be:
Correct!
Wrong!
In the semiconservative replication of DNA, progeny DNA molecules consist of: v = √(2gL) , the tension in the string increases just after the striking by ?
Correct!
Wrong!
Which of the following are purines?
Correct!
Wrong!
Science Quiz 68
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