Biotechnology
Telangana Open School (TOSS) · Class 12 · Biology
Flashcards for Biotechnology — Telangana Open School (TOSS) Class 12 Biology. Quick Q&A cards covering key concepts, definitions, and formulas.
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What is biotechnology?
Answer
Biotechnology is the industrial application of living organisms and their biological processes—such as biochemistry, microbiology, and genetic engineering—to produce useful products like food suppleme…
Who first used the term 'biotechnology' and when?
Answer
The term 'biotechnology' was first used by Karl Ereky in 1919. He used it to describe processes that convert raw materials into useful products using living organisms.
What does the word 'biotechnology' mean?
Answer
The word comes from two parts: 'bio' meaning life or biology, and 'technology' meaning the application of scientific knowledge for practical purposes. So, biotechnology means using biological systems …
Define genetic engineering.
Answer
Genetic engineering is the artificial manipulation of an organism's DNA to introduce new or altered traits. It involves inserting, deleting, or modifying genes in a controlled way. For example, insert…
What is recombinant DNA (r-DNA)?
Answer
Recombinant DNA is formed when DNA fragments from two different sources or species are combined in the laboratory and inserted into a host organism. For example, combining human insulin gene with bact…
What is the main goal of recombinant DNA technology?
Answer
The main goal is to alter genetic material outside an organism to obtain enhanced or desired characteristics in living organisms or their products. This includes producing useful proteins like insulin…
List the five main steps in recombinant DNA technology.
Answer
1. Isolation of the desired gene. 2. Insertion of the gene into a suitable vector (like a plasmid). 3. Introduction of the recombinant vector into a host cell (like E. coli). 4. Selection of transform…
What is a vector in genetic engineering?
Answer
A vector is a carrier molecule, usually a plasmid or virus, used to transfer recombinant DNA into a host cell. Plasmids are small circular DNA molecules found in bacteria that can replicate independen…
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