Final answer:
A nucleotide features a nitrogenous base, a pentose sugar, and at least one phosphate group. Together, these components form the building blocks of nucleic acids such as DNA and RNA, where they support the structural backbone and carry genetic information.Option 1 is the correct answer.
Step-by-step explanation:
The feature of a nucleotide includes three critical components: a nitrogenous base, a pentose sugar, and at least one phosphate group. Therefore, the correct answer to which of the following is a feature of a nucleotide is 1) Nitrogenous base, sugar, and phosphate group.
Nucleotides are the basic building blocks of nucleic acids, such as DNA and RNA. Each nucleotide is composed of one of five nitrogen-containing bases, a five-carbon sugar (pentose), which can be either deoxyribose (in DNA) or ribose (in RNA), and one or more phosphate groups. The sugar and phosphate make up the backbone of the nucleic acid structures, while the nitrogenous bases carry the genetic information and interact through base pairing.
In DNA, the nitrogenous bases are adenine (A), cytosine (C), guanine (G), and thymine (T). In RNA, thymine is replaced by uracil (U). These nucleotides can form bonds with complementary bases, following the rules of base pairing, to create the structure of DNA or RNA.