Principles - genetic engineering and bioprocessing — practice questions
5 questions in the bank on this idea. Below are 5 of them, exactly as they appear in a test.
What is the central idea of genetic engineering?
- A. Deliberate DNA manipulation
- B. Growth of organisms without changing DNA
- C. Selection of naturally occurring variants without direct DNA alteration
- D. Separation of proteins by size
Why are two core techniques central to modern biotechnology?
- A. Both techniques only separate DNA fragments
- B. Genetic engineering modifies DNA; bioprocessing supports production
- C. Bioprocessing replaces the need for genes
- D. Genetic engineering begins only after large-scale product purification is complete
A bacterium is engineered to produce a human protein, but the culture conditions do not support bacterial growth. Which principle of biotechnology has failed?
- A. Mendelian segregation
- B. Formation of a genetic code
- C. Bioprocess optimisation
- D. Chromosome pairing
Why is aseptic handling important during industrial biotechnology?
- A. It eliminates every need for later product recovery and purification
- B. It forces recombinant DNA to replicate faster
- C. It changes the genetic code of the host
- D. It prevents contamination of the production culture
An engineered microbe carries the desired gene but produces very little product. Which strategy best reflects the biotechnological principle needed next?
- A. Optimise culture and production conditions
- B. Delete the inserted gene and reconstruct the host genome from the beginning
- C. Stop all microbial growth
- D. Replace the genetic code
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