Restriction enzymes recognize and cut specific patterns of DNA sequences. Gel electrophoresis then sorts the fragments according to length. 6 Questions About Dna Answered Britannica In the meantime scientists in Britain have won approval to use CRISPR to edit the DNA in healthy human embryos to learn more about normal human development. . Next scientists use tools to insert the gene into the DNA of the plant. Influence is positive when one persuades others in order that bothall parties obtain the results they want. The DNA can be visualised by staining it with ethidium bromide and photographing under UV light. This is the basis for a real race toward DNA storage Varshney says. The methylase enzyme added protective methyl groups to DNA and the restriction enzyme cut unmethylated unprotected DNA at multiple locations along its length. The model the Cambridge duo put forward did not simply describe the DNA molecule as a doubl