6. Why is DNA replication considered to be semiconservative? a. Each original DNA strands makes a copy of its complementary base pair. b. Each original DNA strands makes a copy of itself. c. It keeps half of the old nucleotides. d. None of the above. 7. Which enzyme separates and unwinds the DNA strands at the beginning of replication? a. helicase b. ligase c. gyrase d. topoisomerase

Biology (MindTap Course List)
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Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
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Chapter12: Dna: The Carrier Of Genetic Information
Section: Chapter Questions
Problem 8TYU: The statement DNA replicates by a semiconservative mechanism means that (a) only one DNA strand is...
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6. Why is DNA replication considered to be semiconservative?
a. Each original DNA strands makes a copy of its complementary base pair.
b. Each original DNA strands makes a copy of itself.
c. It keeps half of the old nucleotides.
d. None of the above.
7. Which enzyme separates and unwinds the DNA strands at the beginning of replication?
a. helicase
b. ligase
c. gyrase
d. topoisomerase
Transcribed Image Text:6. Why is DNA replication considered to be semiconservative? a. Each original DNA strands makes a copy of its complementary base pair. b. Each original DNA strands makes a copy of itself. c. It keeps half of the old nucleotides. d. None of the above. 7. Which enzyme separates and unwinds the DNA strands at the beginning of replication? a. helicase b. ligase c. gyrase d. topoisomerase
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