[Campbell Biology P.56] The information in genes is encoded by specific sequences of chemic... | Practice Question

The information in genes is encoded by specific sequences of chemical building blocks within DNA. According to the provided text and Figure 1.7, which of the following represents the four types of chemical building blocks nucleotides that make up DNA?

  • A: Adenine, Thymine, Cytosine, Guanine (A, T, C, G)
  • B: Amino acids
  • C: Sugars, phosphates, and nitrogenous bases
  • D: Lipids

Explanation

The text states that DNA is made up of four kinds of chemical building blocks called nucleotides, abbreviated A, T, C, and G, corresponding to Adenine, Thymine, Cytosine, and Guanine respectively, as also shown in Figure 1.7.