Recombinant DNA technology has which one of the following advantages?

Question

BlackTom AI · Accepted Answer

Question restatement: Recombinant DNA technology has which one of the following advantages?

Option 1: 'proteins can be expressed in large quantities' — This is a core advantage of recombinant DNA technology. By introducing a gene into a suitable expression system (bacteria, yeast, mammalian cells, etc.), researchers can drive high levels of protein production, which is essential for research, industrial, and therapeutic applications.

Option 2: 'affinity tags can be fused to proteins' — Affinity tags (like His-tags, FLAG-tags, or Strep-tags) are routinely added to recombinant proteins to facilitate purification and detection. This practice is a standard benefit enabled by recombinant methods, making downstream processing more efficient.

Option 3: 'proteins with modified sequences can be readily generated' — Recombinant DNA allows precise alterations to the protein-coding sequence, enabling substitutions, deletions, insertions, or domain swaps. This capability is foundational for structure–function studies and for engineering proteins with new properties.

Option 4: 'fusion proteins can be easily accomplished' — Creating fusion proteins (e.g., reporter fusions like GFP or enzyme fusions) is a common and straightforward outcome of cloning genes into expression vectors with appropriate reading frames and linkers, expanding functional and localization studies.

Option 5: 'All of them are correct' — When considering the breadth of recombinant DNA technology, all of the above advantages are aspects that this technology enables, either directly or as a routine practice in molecular biology workflows.

Putting these together, each listed item describes a recognized benefit enabled by recombinant DNA approaches, and together they capture the general scope of the technology's advantages.

Recombinant DNA technology has which one of the following advantages?单项选择题

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