In each question below, a sentence is given, divided into five parts (1, 2, 3, 4, 5) which when rearranged will form a logical and coherent sentence. One of the parts does not belong to the sentence. Identify the part that does not belong and rearrange the remaining parts to form a meaningful sentence. Choose the correct arrangement.  1. meticulously altering specific genomic sequences to eradicate hereditary mutations at their fundamental source  2. the revolutionary deployment of CRISPR-Cas9 technologies has profoundly transformed the landscape of genetic engineering  3. thereby granting medical professionals unprecedented capabilities to prevent debilitating congenital disorders before birth  4. the pervasive influence of social media algorithms continues to polarize contemporary political discourse  5. by providing highly precise molecular scissors capable of targeting and modifying flawed DNA strands