Name the organism that fits each role. The source of the toxin gene of Bt cotton…
Contributed by StemPy LabTry it on paper first. A hint, the key idea and the worked solution are here when you need them.
Name the organism that fits each role.
- The source of the toxin gene of Bt cotton.
- The host in which the chains of insulin were made in 1983.
- The host that makes the protein of the hepatitis B vaccine.
- The vector that carried the ADA cDNA into lymphocytes.
- The vector that carried the nematode genes into tobacco. (This is not in the NEET syllabus text.)
Need a reminder? The key ideaShow
The chapter pairs an application with an organism, a product and a tool. Bt cotton: Bacillus thuringiensis, genes cryIAc and cryIIAb, cotton bollworms. Corn borer: cryIAb. Insulin: chains A and B, the C peptide removed, E. coli, 1983. Hepatitis B vaccine: yeast. ADA gene therapy: lymphocytes, retroviral vector, 1990. Alpha-1-antitrypsin: emphysema. Rosie: 1997, human alpha-lactalbumin. Basmati, neem and turmeric: biopiracy and patents.
The worked solution
Have you tried it?
Work it out on paper first. It is fine to get stuck or make a mistake: that is how we learn. When you are ready, go through the solution one step at a time, and check each step against your own.
Step 1. (a) Bacillus thuringiensis.
Step 2. (b) E. coli.
Step 3. (c) Yeast.
Step 4. (d) A retrovirus, as a retroviral vector.
Step 5. (e) Agrobacterium.
Answer: (a) Bacillus thuringiensis; (b) E. coli; (c) yeast; (d) a retroviral vector; (e) Agrobacterium.
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