How does the role of RNA polymerase in transcription differ from that of DNA replication? polymerase is an enzyme that catalyzes the conversion of free nucleotides into a single strand. DNA polymerase differs from RNA polymerase in two major respects: Like all â¦enzymes, DNA polymerase is substrate-specific.
Home maintenance: On average, homeowners will spend between 1 to 4 percent of a homeâs value annually on maintenance and repairs, which tend to increase as the house ages. U.S. News and World Report Note: for a $200,000 home, thatâs at least $2,000 in repairs annually.
1 The average building owner spends $127,500+ on a roof over a buildingâs lifecycle. 2  With average roof dimensions of 10,000 square feet, a new commercial roof on average costs $42,500+. 3  Generally speaking, roof maintenance programs cost 1-3 percent per year of what a complete roof replacement is projected to cost.n a 10,000-square foot roof, those cost differences are quite wide-ranging. A reactively maintenanced 10,000-square foot roof would cost on average $2,500, and an actively maintenanced 10,000-square foot roof on average $1,400. That is a $900 cost difference overall.