Aside from the diamond, the ruby, sapphire, emerald, pearl (not, strictly speaking, a gemstone) and opal have also been considered to be precious. Up to the discoveries of bulk amethyst in Brazil in the 19th century, amethyst was considered a precious stone as well, going back to ancient Greece.
A restriction map is a map of known restriction sites within a sequence of DNA. Restriction mapping requires the use of restriction enzymes.In molecular biology, restriction maps are used as a reference to engineer plasmids or other relatively short pieces of DNA, and sometimes for longer genomic DNA.ased on the sizes of the resultant DNA fragments the positions of the sites can be inferred. Restriction mapping is a very useful technique when used for determining the orientation of an insert in a cloning vector, by mapping the position of an off-center restriction site in the insert (Dale, Von Schantz, 2003).
Define yeast artificial chromosomes. What is electroporation? Why is PCR â polymerase chain reaction important in many aspects of biotechnology? Label the diagram of PCR below. What is the purpose and general process of gel electrophoresis? Label the diagram below â focus on the charge, molecule size and results. Label the diagram below â focus on identifying the fragments. Define and explain the significance of RFLPâs â restriction length polymorphisms. What was the purpose of the Human Genome Project? Label the diagram outlining the Southern Blotting of DNA Fragments Why is genetic mapping considered a ârelative mappingâ as opposed to physical mapping? What is the goal of DNA sequencing?