Complex sentence: In biological sciences, nitrogenous bases are increasingly termed nucleobases because of their role in nucleic acids-their flat shape is particularly important when considering their roles as the building blocks of DNA and RNA: adenine, guanine, thymine, cytosine, and uracil.
Split into simpler sentences: In biological sciences, nitrogenous bases are increasingly termed nucleobases because of their role in nucleic acids. Their flat shape is particularly important when considering their roles in nucleic acids as nucleobases (building blocks of DNA and RNA): adenine, guanine, thymine, cytosine, and uracil.