Final answer:
The sulfhydryl oxygen group is not a component of a nucleotide. A nucleotide consists of a nitrogen-containing base, a pentose sugar, and one or more phosphate groups.The right answer is B
Step-by-step explanation:
The structure that is not a component of a nucleotide is b. Sulfhydryl Oxygen group. Nucleotides, which are the building blocks of nucleic acids, consist of three main components: a nitrogen-containing base, a pentose sugar, and one or more phosphate groups. A pentose sugar can be either deoxyribose or ribose, which is the sugar component of DNA or RNA respectively. The nitrogen-containing base can be either a purine, such as adenine (A) or guanine (G), or a pyrimidine, such as cytosine (C), thymine (T), or uracil (U).