How to Differentiate Between Poisonous Snakes and Non Poisonous Snakes. Some snakes harm their prey by injecting venom through their fangs; some of this venom can be harmful to humans, resulting in what we often think of as poisoning...
DNA polymerases cannot initiate DNA synthesis - they can only add on to an existing strand of DNA or RNA. The existing strand is said to prime DNA synthesis. RNA polymerases, however, can begin copying a parent strand with no primer - just as they do in transcription of genes. During DNA replication, RNA primers are produced by RNA polymerases in order to provide a starting point for DNA polymerases to extend from.
Transcription. RNA is copied from DNA in a process called. transcription. . During Transcription. The enzyme RNA polymerase binds to DNA and separates the 2 DNA strands. RNA polymerase builds a strand of RNA using one strand of DNA as the template.The DNA is transcribed into RNA following base-pairing rules except that uracil binds to adenine.he enzyme RNA polymerase binds to DNA and separates the 2 DNA strands. RNA polymerase builds a strand of RNA using one strand of DNA as the template. The DNA is transcribed into RNA following base-pairing rules except that uracil binds to adenine.