<prompt> Translate the following text to EnglishKuelewa tofauti ni ufunguo wa kuelewa maendeleo, na Dolly huonyesha uwezekano wa ajabu wa kudhibiti mchakato - wa kufanya majaribio ya kutambua sheria za msingi za ujenzi zinazotumiwa kuweka wanyama pamoja.  <response>: Understanding differentiation is the key to understanding development, and Dolly embodies the extraordinary possibility of manipulating the process--of doing experiments to identify the basic construction rules used in putting animals together. 