Some regions of the genome are naturally transcribed into proteins at a high rate, whereas other regions are essentially silent.
基因组的某些区域天生就以高速率转录成蛋白质，而其它区域则基本上保持沉默。
2
One approach for locating and snipping DNA strands involves "zinc fingers" - proteins that bind to DNA and can be linked together to recognise extended stretches of DNA with very high specificity.