Dna Synthesis
DNA and the Gene: Synthesis and Repair
1) Watson and Crick elucidated the structure of DNA in 1953. Their research built on and helped explain the findings of other scientists, including ________.
A) X-ray diffraction studies by Rosalind Franklin and Maurice Wilkins.
B) Chargaff's rules: C = G and T = A.
C) Scientists who recognized that a nucleotide consisted of a sugar, a phosphate, and a nitrogen-containing base.
D) All of the above were important considerations in the elucidation of the structure of DNA.
All were included to incorporate the structure of DNA.
2) Hershey and Chase set out to determine what molecule served as the unit of inheritance. They completed a series of transduction experiments in which E. coli was infected by a T2 …show more content…
| Proteins Involved in DNA Synthesis | | Process | Protein | Function | Opening the helix | HelicaseSS binding proteinsTopoisomerase | Breaks hydrogen bonds between base pairsStabilizes single-stranded DNABreaks and rejoins DNA strand to untwist the double helix | Synthesis of leading strand | PrimaseDNA polymerase IIISliding clamp | Catalyzes the synthesis of the RNA primerAdds bases to the growing DNA strandHolds DNA polymerase in place during strand elongation | Synthesis of the lagging strand | PrimaseDNA polymerase IIISliding clampDNA polymerase ILigase | Catalyzes the synthesis of RNA primersAdds bases to the growing end of the Okazaki fragmentHolds DNA polymerase in place during strand elongationRemoves the RNA primer and replaces it with DNAJoins Okazaki fragments into a continuous strand |
A) DNA polymerase I and DNA polymerase III are the same enzyme found in different organisms.
B) DNA polymerase I and DNA polymerase III have different functions.
C) The sliding clamp molecule is a ribozyme.
D) Topoisomerase is involved in proofreading activity.
This is the best inference made from the previous
1) Watson and Crick elucidated the structure of DNA in 1953. Their research built on and helped explain the findings of other scientists, including ________.
A) X-ray diffraction studies by Rosalind Franklin and Maurice Wilkins.
B) Chargaff's rules: C = G and T = A.
C) Scientists who recognized that a nucleotide consisted of a sugar, a phosphate, and a nitrogen-containing base.
D) All of the above were important considerations in the elucidation of the structure of DNA.
All were included to incorporate the structure of DNA.
2) Hershey and Chase set out to determine what molecule served as the unit of inheritance. They completed a series of transduction experiments in which E. coli was infected by a T2 …show more content…
| Proteins Involved in DNA Synthesis | | Process | Protein | Function | Opening the helix | HelicaseSS binding proteinsTopoisomerase | Breaks hydrogen bonds between base pairsStabilizes single-stranded DNABreaks and rejoins DNA strand to untwist the double helix | Synthesis of leading strand | PrimaseDNA polymerase IIISliding clamp | Catalyzes the synthesis of the RNA primerAdds bases to the growing DNA strandHolds DNA polymerase in place during strand elongation | Synthesis of the lagging strand | PrimaseDNA polymerase IIISliding clampDNA polymerase ILigase | Catalyzes the synthesis of RNA primersAdds bases to the growing end of the Okazaki fragmentHolds DNA polymerase in place during strand elongationRemoves the RNA primer and replaces it with DNAJoins Okazaki fragments into a continuous strand |
A) DNA polymerase I and DNA polymerase III are the same enzyme found in different organisms.
B) DNA polymerase I and DNA polymerase III have different functions.
C) The sliding clamp molecule is a ribozyme.
D) Topoisomerase is involved in proofreading activity.
This is the best inference made from the previous