Tips and Tricks on Improvement in Food Resources


Biotechnology is "the commercial application of living organisms or their products, which involves the deliberate manipulation of their DNA molecules".

Restriction Enzymes: In the late 1960's scientists Stewart Linn and Werner Arber isolated samples of the two types of enzymes responsible for phage growth restriction in Escherichia coli (E.coli) bacteria. One of these enzymes methylated DNA, while the other cleaved unmethylated DNA at a wide variety of locations along the length of the molecule. The first type of enzyme was called a "methylase" while the other was a "restriction nuclease".

DNA Polymerase: DNA Pol I enzyme polymerizes the DNA synthesis of DNA template or complementary DNA (cDNA). It also catalyses a 5'-3' and 3'-5' exonucleolytic degradation of DNA. The other two enzymes are DNA polymerase II (DNA pol II) and DNA polymerase III IDNA pol III).

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Practice other most important chapters tips
The Fundamental Unit of Life
Diversity in Living Organisms
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