(a) Eukaryotic DNA replication is more complex than prokaryotic replication. Give one reason why this should be so. (b) Why might eukaryotic cells need more kinds of DNA polymerases than bacteria?
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(a) Eukaryotic
(b) Why might eukaryotic cells need more kinds of DNA polymerases than bacteria?
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- (a) What is the function of helicase in DNA replication?(b) What is the function of DNA polymerase?(c) What are replication forks? Compare and contrast leading and lagging strands. Answer all pleaseBelow is a diagram of DNA replication as currently believed to occur in E. coli. Arrows start from numbers and end at specific points. Answer the questions relating to the locations specified by the numbers (1) Which end (5' or 3') of the molecule is here? (2) Which enzyme is probably functioning here to deal with supercoils in the DNA? (3) Which enzyme is probably functioning here to unwind the DNA?Explain the complexities of DNA replication that make the process (a) bidirectional and (b) continuous in one strand and discontinuous in the other.
- DNA replication is semi-conservative, this statement means that Question 6 options: a) the new DNA molecules that are made are not identical to the original DNA molecule. b) the new DNA molecules that are made are only partially DNA since RNA primers are included. c) the new DNA molecules that are made are composed of one strand of the old DNA molecule and one strand of new DNA. d) of the two new DNA molecules made, one is entirely new DNA and one is entirely old new. e) the new DNA molecules that are made have a mixture of old and new DNA in each strand of the DNA duplex, randomly interspersed.The following diagram represents a DNA molecule that is undergoing replication. Draw in the strands of newly synthesized DNA and identify (a) the polarity of the newly synthesized strands, (b) the leading and lagging strands, (c) Okazaki fragments, and (d) RNA primers.Why is DNA replication described as “semiconservative?”
- 10) Which of the following statements is false? A) Single stranded binding proteins help nucleotide bases pair during DNA replication. B) Topoisomerase prevents DNA from getting overwound during replication. C) DNA ligase connects Okazaki fragments during DNA replication. D) DNA helicase separates complementary strands of DNA during replication.(e) What difference would it make to bidirectional DNA replication if both modes of chain extension were equally favourable?In the diagram of replication shown here, fill in the blanks with the appropriate terms: (a) base pair, (b) base, (c) nucleotide, (d) template strand, (e) newly synthesized strand, (f) separating strands.
- Why do we say that DNA replication is semiconservative?Below is a diagram of DNA replication as currently believed to occur in E. coli. From specific points, arrows are provided that lead to numbers. Answer the questions below relating to the locations specified by the numbers. (02) What end (5’ or 3’) of the molecule is here? (State which) What enzyme is probably functioning here to deal with supercoils in the DNA? What enzyme is probably functioning here to unwind the DNA? What nucleic acid is probably depicted here? What are these short DNA fragments usually called? What enzyme probably functions here to couple these two newly synthesized fragments of DNA? Is this strand the leading or lagging strand? What end (5’ or 3’) of the molecule is here? (State which)The following diagrams represent DNA molecules that are undergoing replication. Draw in the strands of newly synthesized DNA and identify (a) the polarity of the newly synthesized strands, (b) the leading and lagging strands, (c) Okazaki fragments, and (d) RNA primers.