NEET Exam > NEET Questions > A nucleotide is formed of:a)Purine, pyrimidin...
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A nucleotide is formed of:
- a)Purine, pyrimidine and phosphate
- b)Purine, sugar and phosphate
- c)Nitrogen base, sugar and phosphate
- d)Pyrimidine, sugar and phospha
Correct answer is option 'C'. Can you explain this answer?
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Most Upvoted Answer
A nucleotide is formed of:a)Purine, pyrimidine and phosphateb)Purine, ...
Nucleotide=Nitrogen base + sugar + phosphate...
Nucleotide=Nucleoside+phosphate...
Nucleoside=Nitrogen base + sugar...
Hence;option C is true...
Nucleotide=Nucleoside+phosphate...
Nucleoside=Nitrogen base + sugar...
Hence;option C is true...
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A nucleotide is formed of:a)Purine, pyrimidine and phosphateb)Purine, ...
Nucleotide Composition
A nucleotide is a basic unit of DNA and RNA, which consists of three components:
1. Nitrogen Base
The nitrogen base is a heterocyclic ring structure that contains nitrogen atoms. There are two types of nitrogen bases, purines, and pyrimidines. Purines are double-ring structures, while pyrimidines are single-ring structures.
2. Sugar
The sugar component in nucleotide is a pentose sugar. In RNA, the sugar is ribose, while in DNA, it is deoxyribose.
3. Phosphate
The phosphate component in nucleotide is a phosphoric acid, which is attached to the sugar molecule.
Formation of Nucleotide
Nucleotides are formed through a condensation reaction between the sugar and the phosphate group. The nitrogen base is attached to the sugar molecule through a glycosidic bond.
Types of Nucleotides
There are four types of nucleotides that make up DNA, which are:
1. Adenine (A)
2. Thymine (T)
3. Guanine (G)
4. Cytosine (C)
In RNA, uracil (U) replaces thymine (T).
Conclusion
In conclusion, a nucleotide is a complex molecule that consists of a nitrogen base, sugar, and phosphate. The nitrogen base can be a purine or pyrimidine, while the sugar is a pentose sugar. The phosphate group is attached to the sugar molecule through a phosphodiester bond. Nucleotides are the building blocks of DNA and RNA, which play a crucial role in the transmission of genetic information.
A nucleotide is a basic unit of DNA and RNA, which consists of three components:
1. Nitrogen Base
The nitrogen base is a heterocyclic ring structure that contains nitrogen atoms. There are two types of nitrogen bases, purines, and pyrimidines. Purines are double-ring structures, while pyrimidines are single-ring structures.
2. Sugar
The sugar component in nucleotide is a pentose sugar. In RNA, the sugar is ribose, while in DNA, it is deoxyribose.
3. Phosphate
The phosphate component in nucleotide is a phosphoric acid, which is attached to the sugar molecule.
Formation of Nucleotide
Nucleotides are formed through a condensation reaction between the sugar and the phosphate group. The nitrogen base is attached to the sugar molecule through a glycosidic bond.
Types of Nucleotides
There are four types of nucleotides that make up DNA, which are:
1. Adenine (A)
2. Thymine (T)
3. Guanine (G)
4. Cytosine (C)
In RNA, uracil (U) replaces thymine (T).
Conclusion
In conclusion, a nucleotide is a complex molecule that consists of a nitrogen base, sugar, and phosphate. The nitrogen base can be a purine or pyrimidine, while the sugar is a pentose sugar. The phosphate group is attached to the sugar molecule through a phosphodiester bond. Nucleotides are the building blocks of DNA and RNA, which play a crucial role in the transmission of genetic information.
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A nucleotide is formed of:a)Purine, pyrimidine and phosphateb)Purine, sugar and phosphatec)Nitrogen base, sugar and phosphated)Pyrimidine, sugar and phosphaCorrect answer is option 'C'. Can you explain this answer?
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