Which of the following bond is not related to nucleic acid :

Options

A. H-bond
B. Ester bond
C. Glycosidic bond
D. Peptide bond

Answer

To solve the question "Which of the following bond is not related to nucleic acid?", we can follow these steps:

### Step 1: Understand the components of nucleic acids
Nucleic acids, such as DNA and RNA, are composed of nucleotides. Each nucleotide consists of a sugar, a phosphate group, and a nitrogenous base. The bonds that are typically associated with nucleic acids include:
- Hydrogen bonds (between nitrogenous bases)
- Glycosidic bonds (between the sugar and the nitrogenous base)
- Ester bonds (between the phosphate group and the sugar)

### Step 2: Identify the bonds mentioned in the options
We need to analyze the bonds provided in the options. Common bonds associated with nucleic acids include:
- Hydrogen bond
- Glycosidic bond
- Ester bond
- Peptide bond

### Step 3: Determine which bond is not related to nucleic acids
Among the bonds listed:
- **Hydrogen bond**: Present in nucleic acids (between base pairs).
- **Glycosidic bond**: Present in nucleic acids (between the sugar and base).
- **Ester bond**: Present in nucleic acids (between the phosphate and sugar).
- **Peptide bond**: Not present in nucleic acids; it is found in proteins.

### Step 4: Conclusion
The bond that is not related to nucleic acids is the **peptide bond**.

### Final Answer
The correct answer is **peptide bond**.

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