To solve this problem, we need to analyze each statement and determine which one is correct. Let's evaluate each option:$\newline \bullet$Option 1: In capping, methyl guanosine triphosphate is added to the 3' end of hnRNA.$\newline$ - Capping involves the addition of a 7-methylguanosine cap to the 5' end of hnRNA, not the 3' end.$\newline$ - Therefore, this statement is incorrect.$\newline \bullet$Option 2: RNA polymerase binds with Rho factor to terminate the process of transcription in bacteria.$\newline$ - In bacteria, the Rho factor is a protein that facilitates the termination of transcription by binding to the RNA polymerase and causing it to dissociate from the DNA.$\newline$ - This statement is correct.$\newline \bullet$Option 3: The coding strand in a transcription unit is copied to an mRNA.$\newline$ - During transcription, the template strand (not the coding strand) is used to synthesize mRNA.$\newline$ - The coding strand has the same sequence as the mRNA (except for uracil replacing thymine), but it is not directly copied.$\newline$ - Therefore, this statement is incorrect.$\newline \bullet$Option 4: Split gene arrangement is characteristic of prokaryotes.$\newline$ - Split genes, which contain introns and exons, are characteristic of eukaryotes, not prokaryotes.$\newline$ - Prokaryotic genes are typically continuous without introns.$\newline$ - Therefore, this statement is incorrect.$\newline$Based on the analysis, the correct statement is Option 2: RNA polymerase binds with Rho factor to terminate the process of transcription in bacteria.