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Two free ribonucleotide units are interl...

Two free ribonucleotide units are interlinked with

A

peptide bond

B

covalent bond

C

hydrogen bond

D

phosphodiester bond

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The correct Answer is:
To solve the question regarding how two free ribonucleotide units are interlinked, we can break it down into the following steps: ### Step-by-Step Solution: 1. **Understanding Ribonucleotides**: - Ribonucleotides are the building blocks of RNA and consist of three components: a nitrogenous base, a ribose sugar, and a phosphate group. 2. **Formation of Nucleosides**: - The nitrogenous base (which can be adenine, guanine, cytosine, or uracil) is attached to the ribose sugar through a bond known as the **N-glycosidic bond**. This combination forms a nucleoside (e.g., adenosine, guanosine). 3. **Formation of Nucleotides**: - When a phosphate group is added to the nucleoside, it forms a nucleotide. The bond between the ribose sugar and the phosphate group is called a **phosphoester bond**. 4. **Linking Nucleotides**: - When multiple nucleotides link together to form a polynucleotide chain (like RNA), they are connected by **phosphodiester bonds**. This bond specifically connects the 3' carbon of one ribonucleotide's sugar to the 5' carbon of the next ribonucleotide's sugar. 5. **Conclusion**: - Therefore, the two free ribonucleotide units are interlinked by a **phosphodiester bond**. ### Final Answer: The two free ribonucleotide units are interlinked with a **phosphodiester bond**. ---
To solve the question regarding how two free ribonucleotide units are interlinked, we can break it down into the following steps: ### Step-by-Step Solution: 1. **Understanding Ribonucleotides**: - Ribonucleotides are the building blocks of RNA and consist of three components: a nitrogenous base, a ribose sugar, and a phosphate group. 2. **Formation of Nucleosides**: ...
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