Final answer:
The nucleic acids DNA and RNA consist of the purines adenine (A) and guanine (G), as well as the pyrimidines cytosine (C), thymine (T), and uracil (U). DNA contains A, G, C, and T, while RNA contains A, G, C, and U, replacing T with U. The correct option corresponding to these nitrogenous bases is A) Adenine, Guanine, Thymine, Cytosine, Uracil.
Step-by-step explanation:
The nucleic acids DNA and RNA are composed of nitrogenous bases that are either purines or pyrimidines. The purines found in both DNA and RNA are adenine (A) and guanine (G), which are characterized by a double-ringed structure that contains multiple nitrogen atoms. On the other hand, the pyrimidines include cytosine (C), thymine (T), and uracil (U), each featuring a single carbon-nitrogen ring.
DNA specifically contains four nitrogen bases: adenine (A), guanine (G), cytosine (C), and thymine (T). Conversely, RNA replaces thymine with uracil, hence its nitrogen bases are adenine (A), guanine (G), cytosine (C), and uracil (U). This distinction is crucial for understanding the structural and functional differences between the two types of nucleic acids.
With this knowledge, looking at the available options, the correct answer is A) Adenine, Guanine, Thymine, Cytosine, and Uracil, as these are the nitrogenous bases found in nucleic acids, accounting for the types present in both DNA and RNA.