What RNA nitrogen bases match with the following DNA nitrogen bases?

How does the author's purpose in this passage differ from an author writing about her personal struggle living with asthma?

Plz will mark! the diagram shows the positions of the sun, moon and earth during spring tides, when the high tides are at their highest and low tides at their lowest. what is it about these positions that causes these high and low tides?

Why reason best illustrates why hershey and chase chose to use viruses in their experiment?