Genetic modification and biotechnology
Understandings:
Gel electrophoresis is used to separate proteins or fragments of DNA according to size.
PCR can be used to amplify small amounts of DNA.
DNA profiling involves comparison of DNA.
Application: Use of DNA profiling in paternity and forensic investigations, use for criminal cases, paternity suits, relationships between species..
Gel electrophoresis is used to separate proteins or fragments of DNA according to size.
PCR can be used to amplify small amounts of DNA.
DNA profiling involves comparison of DNA.
Application: Use of DNA profiling in paternity and forensic investigations, use for criminal cases, paternity suits, relationships between species..
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Genetic modification is carried out by gene transfer between species.
Application: Gene transfer to bacteria using plasmids makes use of restriction endonucleases and DNA ligase.
Application: Gene transfer to bacteria using plasmids makes use of restriction endonucleases and DNA ligase.
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Clones are groups of genetically identical organisms, derived from a single original parent cell.
Many plant species and some animal species have natural methods of cloning.
Animals can be cloned at the embryo stage by breaking up the embryo into more than one group of cells.
Methods have been developed for cloning adult animals using differentiated cells.
Application: Production of cloned embryos produced by somatic-cell nuclear transfer.
Many plant species and some animal species have natural methods of cloning.
Animals can be cloned at the embryo stage by breaking up the embryo into more than one group of cells.
Methods have been developed for cloning adult animals using differentiated cells.
Application: Production of cloned embryos produced by somatic-cell nuclear transfer.
Theory of knowledge:
The use of DNA for securing convictions in legal cases is well established, yet even universally accepted theories are overturned in the light of new evidence in science. What criteria are necessary for assessing the reliability of evidence?
The use of DNA for securing convictions in legal cases is well established, yet even universally accepted theories are overturned in the light of new evidence in science. What criteria are necessary for assessing the reliability of evidence?
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Skill: Design of an experiment to assess one factor affecting the rooting of stem-cuttings.
Aim 6: The design of a rooting experiment should ideally lead to the experiment actually being carried out by students.
A plant species should be chosen for rooting experiments that forms roots readily in water or a solid medium.
Aim 6: The design of a rooting experiment should ideally lead to the experiment actually being carried out by students.
A plant species should be chosen for rooting experiments that forms roots readily in water or a solid medium.
