Question

which technique is used to combine dna from different sources?
a. cloning
b. gene therapy
c. gene editing
d. recombinant dna technology
what is a major ethical concern associated with gene editing in \human embryos\?
a. altering human traits for non - medical purposes
b. biodiversity preservation
c. the potential for off - target mutations
d. overproduction of genetically modified organisms
which field has significantly benefited from genetic engineering through the creation of bacillus thuringiensis (bt) cotton?
a. agriculture
b. pharmaceutical
c. medicine
d. industry

Explanation:

First Question:

• Option a: Cloning is the process of producing genetically identical copies of a cell or an organism, not combining DNA from different sources.
• Option b: Gene therapy is the treatment of diseases by introducing genetic material into cells, not about combining DNA from different sources.
• Option c: Gene editing is the process of making changes to specific DNA sequences, not combining DNA from different sources.
• Option d: Recombinant DNA technology involves combining DNA molecules from different sources to create a new DNA molecule.

• Option a: Altering human traits for non - medical purposes (such as enhancing physical or intellectual traits) is a major ethical concern in gene editing of human embryos as it can lead to eugenics - like scenarios and unfair advantages.
• Option b: Biodiversity preservation is related to the conservation of different species and ecosystems, not an ethical concern of human embryo gene editing.
• Option c: The potential for off - target mutations is a technical concern rather than an ethical one.
• Option d: Overproduction of genetically modified organisms is related to the production and release of GMOs in the environment, not an ethical concern of human embryo gene editing.

• Option a: Bt cotton is a genetically engineered cotton variety that is resistant to certain pests. Agriculture is the field that deals with crop production, and Bt cotton has significantly benefited the agricultural field by reducing pest damage and increasing yields.
• Option b: The pharmaceutical field deals with the development of drugs, and Bt cotton is not related to pharmaceutical development.
• Option c: Medicine deals with the treatment of diseases in humans and animals, and Bt cotton has no direct relation to the medical field.
• Option d: The industrial field deals with manufacturing and production of non - agricultural goods, and Bt cotton is not related to industrial production.

Answer:

d. Recombinant DNA technology

Second Question: