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What Are Transgenic Bacteria? Illustrate Using Any One Example - CBSE (Science) Class 12 - Biology

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What are transgenic bacteria? Illustrate using any one example.

Solution 1

Transgenic bacteria contain foreign gene that is intentionally introduced into its genome. They are manipulated to express the desirable gene for the production of various commercially important products.

An example of transgenic bacteria is E.coli. In the plasmid of E.coli, the two DNA sequences corresponding to A and B chain of human insulin are inserted, so as to produce the respective human insulin chains. Hence, after the insertion of insulin gene into the bacterium, it becomes transgenic and starts producing chains of human insulin. Later on, these chains are extracted from E.coli and combined to form human insulin.

Solution 2

Bacteria carrying foreign gene are called transgenic bacteria. For example, two DNA sequences (A and B chains of human insulin) were introduced into the plasmid ofbacteria E.coli. The leansgenic bacteria start producing insulin chains.

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 NCERT Solution for Biology Textbook for Class 12 (2018 to Current)
Chapter 12: Biotechnology and its Applications
Q: 2 | Page no. 215

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Solution What Are Transgenic Bacteria? Illustrate Using Any One Example Concept: Biotechnological Applications in Medicine.
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