topic 7.1 DNA structure and replication
Essential idea:
- The structure of DNA is ideally suited to its function
7.1U1: Nucleosomes help to supercoil the DNA.
7.1U2: DNA structure suggested a mechanism for DNA replication.
7.1U3: DNA polymerases can only add nucleotides to the 3' end of a primer.
7.1U4: DNA replication is continuous on the leading strand, and discontinuous on the lagging strand.
7.1U5: DNA replication is carried out by a complex system of enzymes.
7.1U6: Some regions of DNA do not code for proteins but have other important functions.
7.1A1: Rosalind Franklin and Maurice Wilkin's investigation of DNA by X-ray diffraction.
7.1A2: Use of nucleotides containing dideoxyribonucleic acid to stop DNA replication in preparation of samples for base sequencing.
7.1A3: Tandem repeats are used in DNA profiling.
7.1Skill 1: Analysis of results of the Hershey and Chase experiment to provide evidence that DNA is the genetic material.
7.1Skill 2: Utilization of molecular visualization software to analyse the association between protein and DNA within a nucleosome.
7.1U2: DNA structure suggested a mechanism for DNA replication.
7.1U3: DNA polymerases can only add nucleotides to the 3' end of a primer.
7.1U4: DNA replication is continuous on the leading strand, and discontinuous on the lagging strand.
7.1U5: DNA replication is carried out by a complex system of enzymes.
7.1U6: Some regions of DNA do not code for proteins but have other important functions.
7.1A1: Rosalind Franklin and Maurice Wilkin's investigation of DNA by X-ray diffraction.
7.1A2: Use of nucleotides containing dideoxyribonucleic acid to stop DNA replication in preparation of samples for base sequencing.
7.1A3: Tandem repeats are used in DNA profiling.
7.1Skill 1: Analysis of results of the Hershey and Chase experiment to provide evidence that DNA is the genetic material.
7.1Skill 2: Utilization of molecular visualization software to analyse the association between protein and DNA within a nucleosome.