Which enzyme in e. coli is responsible for relieving the tension ahead of the fork that results when the dna unwinds to form the replication "bubble" or "eye"?

Which of the following is a consequence of urban heat islands? increased precipitation downwind of the city? increased precipitation upwind of the city? decreased winds within the city? increased winds within the city?

Which of these is most likely to happen if parallax measurements of star distances are taken after a gap of six months? the results would be accurate the results would be inconsistent the results would not be valid the results would not be repeated

What enzyme is most important for dna replication and why?