Respuesta :
Answer:
a covalent bond forms between the sugar of one nucleotide and the phosphate of a second
Explanation:
The nucleotides are the structural units of nucleic acid. It produces nucleic acid by forming a covalent bond between the sugar and the phosphate group. Thus, option a is correct.
What is a nucleotide?
A nucleotide is a structural organization of nucleic acids that includes RNA and DNA. It comprises a sugar molecule, deoxyribose (DNA), and ribose (RNA), along with a phosphate group and nitrogenous bases (A, T, G, C, and U).
The single unit of a whole nucleotide undergoes polymerization to form the chain of nucleic acid. This process involves the covalent bond formation between the two adjacent nucleotides.
The bond formation occurs between the phosphate group and the sugar of the nucleotides. This polymer formation results in the formation of the whole chain of DNA or RNA.
Therefore, option a. the nucleotides polymerize through covalent bonds to produce nucleic acids.
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Your question is incomplete, but most probably your full question was,
When nucleotides polymerize to form a nucleic acid:
a. a covalent bond forms between the sugar of one nucleotide and the phosphate of a second.
b. a hydrogen bond forms between the sugar of one nucleotide and the phosphate of a second.
c. covalent bonds form between the bases of two nucleotides.
d. hydrogen bonds form between the bases of two nucleotides.
