Is cytosine a nucleotide for DNA?

What gauge wire neede to run 200 amp sub panel 210 feet from main? Are the daylight and darkness in September are nearest to the hours of daylight and darkness in November? What does endemic disease mean? OBandE charges 0.09 per kilowatt hours used If Egan used 243 kWh how much will he pay for his electricity? What would a hundred pound person weigh on a black hole? A specific type of compound forms between convalenr bondswhich is called what? What inner planets would be impossible for humans to land on? What are 10 organism from the ordovician that does not exist anymore? What are the stages of meotosis? Which description explains why damage to aerosol cans can occur if they are exposed to very high temperatures? What effect does an energy change have on the identity of a substance? What word defines a species that naturally lives in a ecosystem? How does fertilization affect the chromosome number of a zygote? Why are index fossils more useful then other fossils to paleontologist? What do scientists think about living on Saturn? Where does reduction occur in an electrochemical cell? What is happening within the hydrogen atom to create emission lines? Is the worlds largest single rock mt Augustus? When large amounts of carbon dioxide trap and hold onto heat energy the process is known as the? What is the difference between star that become white dwarfs and stars that become neutron stars?