In genetic engineering, restriction enzymes cleave the DNA at a specific site known as _____a) restrictionb) recognitionc) promoterd) sense

Analyzing the Question

The question is asking about the specific site on DNA where restriction enzymes cleave.

Relevant Concepts

1. Restriction Enzymes: These are enzymes that cut DNA at specific sequences.
2. Recognition Site: This is the specific sequence of nucleotides that the restriction enzyme recognizes and cuts.

Answer Derivation

Among the options provided:

• a) restriction: This term generally refers to the enzymes themselves or the process but not specifically to the site.
• b) recognition: This correctly describes the site as the particular sequence recognized and cleaved by the enzyme.
• c) promoter: Refers to a region upstream of a gene where transcription factors bind, not where restriction enzymes cut.
• d) sense: This is typically related to the orientation of DNA strands, not relevant to cutting.

Conclusion

Based on the analysis, the correct answer is:

Final Answer

b) recognition