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Question 25 (1 point) You have created a synthetic nucleotide, nucleotide X, which can be substituted into a DNA strand and is able to pair with A nucleotides. However, an A-X pairing is joined by 4 hydrogen bonds. If you were to create a DNA strand made with A, C, G and your new nucleotide X instead of T the new strand would... a) Expect helicase would be able to separate the strands more easily than a strand made with A, C, G and T Ob) Denature at lower temperatures than a strand made with A, C, G, and T Oc) Denature at higher temperatures than a strand made with A, C, G, and T d) Not expect to see any differences in the physical properties of this DNA compared to DNA made with A, C, G and T 2 15 1 17 18 A 20 21
Oc) The. d) The strand labelled 'B' will be Question 30 (1 point) You discover an E. coli mutant that has a non-functional helicase. Such a bacteria; a) Would synthesize DNA at a much slower rate Ob) Would have no problem with DNA replication as bacteria contain multiple origins of replication Oc) Would not be able to separate the DNA strands to allow for DNA replication Od) Would produce new DNA strands that still contain short DNA primers 18