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.
Best Answer: RNA polymerase synthesizes RNA, but does not need a primer to initiate synthesis. DNA polymerase synthesizes DNA, but needs a primer in order to initiate synthesis.DNA = Deoxyribonucleic Acid (H) RNA = Ribonucleic Nucleic Acid (OH) DNA is double stranded RNA is single stranded DNA uses Thymine as a base RNA uses Uracil as a base.Source(s):here are two main segments of the RNA polymerase molecule: the core enzyme, and the sigma subunit. These two pieces are together referred to as the holoenzyme.