Final answer:
Restriction endonucleases are used to dissect genomes into precisely defined fragments for further analysis. These enzymes cleave DNA at specific nucleotide sequences, resulting in unique size distributions of the fragments. This technique is widely used in molecular genetics and has various applications.
Step-by-step explanation:
The technique used to dissect genomes into precisely defined fragments for further analysis is called Restriction Endonucleases. These enzymes are very specific and cleave DNA at specific nucleotide sequences, resulting in the fragmentation of the DNA molecule. The size distribution of the resulting fragments is unique for each DNA and can provide a DNA fingerprint that is used in various applications.
Restriction endonucleases are widely used in molecular genetics and research laboratories for tasks such as genetic mutations identification, establishing parentage, tracing hereditable traits, and even solving criminal cases. By cutting DNA into fragments, restriction endonucleases allow for the specific analysis and manipulation of different regions of the genome.