Showing posts from February, 2013

Desmosomes

Desmosomes (Maculae adherens) Definition: Disc shaped adhesive junction containing cadherins found in a variety of tissu…

Biology Olympiad Questions

International Biology Olympiad (IBO) 2013 1. Genetic engineers construct recombinant DNA molecules using two enzymes: …

Photosynthesis Inhibitors

Paraquat (Herbicide): Act by accepting electrons from the early acceptors of Photo system- I (PS-I)and then reacting …

Metabolism Inhibitors

Inhibit synthesis of purine and thymidylate precursor’s folic acid or tetrahydrofolate. Sulfonamides: Competitively …

Nucleic acid Inhibitors

Rifamycin: The antibiotic interferes with prokaryotic RNA polymerase and thus, interferes with transcription. Blocks …

Protein Synthesis Inhibitors

Several Antibiotic and Toxin inhibitors of Translation Tetracyclines: Inhibits protein synthesis by binding to the s…

Limitations of gene therapy

Gene Therapy Lack of knowledge about the disease at the DNA level Multiple gene effects cannot be treated today …

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