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(1)Nucleotides are building blocks of nucleic acids. Each nucleotide is a composite molecule formed by a) base - sugar - phosphate b) base - sugar - OH c) (base - sugar - phosphate)n d) sugar - phosphate Correct Answer (a) can you explain this answer?
Most Upvoted Answer
(1)Nucleotides are building blocks of nucleic acids. Each nucleotide i...
Nucleotide→ base + sugar + phosphate......
Nucleoside→ base +sugar....
So, option A is correct.....
Nucleoside→ base +sugar....
So, option A is correct.....
Community Answer
(1)Nucleotides are building blocks of nucleic acids. Each nucleotide i...
Introduction
Nucleotides are the building blocks of nucleic acids, which include DNA and RNA. These molecules play a crucial role in storing and transmitting genetic information. Each nucleotide is a composite molecule consisting of three components: a nitrogenous base, a sugar molecule, and a phosphate group.
Explanation
The correct answer is (a) base - sugar - phosphate. Let's break down the components of a nucleotide to understand why this is the correct answer:
1. Base
The base is the nitrogenous component of a nucleotide. There are four types of bases found in DNA: adenine (A), thymine (T), cytosine (C), and guanine (G). In RNA, uracil (U) replaces thymine. The base provides the genetic information and forms specific base pairs with complementary bases in the double helix structure of DNA.
2. Sugar
The sugar component in a nucleotide is either deoxyribose in DNA or ribose in RNA. These sugars are pentose sugars, meaning they have five carbon atoms. The sugar molecule forms the backbone of the nucleic acid chain and connects the bases together.
3. Phosphate
The phosphate group is a negatively charged molecule that consists of one phosphorus atom bonded to four oxygen atoms. It attaches to the sugar molecule through a phosphodiester bond. The phosphate group provides stability to the nucleotide and allows for the formation of the DNA or RNA backbone.
Composition of a Nucleotide
Therefore, the correct composition of a nucleotide is as follows:
- Base: Adenine (A), Thymine (T), Cytosine (C), Guanine (G), or Uracil (U) in RNA.
- Sugar: Deoxyribose in DNA or Ribose in RNA.
- Phosphate: A negatively charged phosphate group bonded to the sugar molecule.
Conclusion
In summary, nucleotides are composite molecules consisting of a nitrogenous base, a sugar molecule, and a phosphate group. The correct answer is (a) base - sugar - phosphate. Understanding the composition of nucleotides is essential for comprehending the structure and function of nucleic acids.
Nucleotides are the building blocks of nucleic acids, which include DNA and RNA. These molecules play a crucial role in storing and transmitting genetic information. Each nucleotide is a composite molecule consisting of three components: a nitrogenous base, a sugar molecule, and a phosphate group.
Explanation
The correct answer is (a) base - sugar - phosphate. Let's break down the components of a nucleotide to understand why this is the correct answer:
1. Base
The base is the nitrogenous component of a nucleotide. There are four types of bases found in DNA: adenine (A), thymine (T), cytosine (C), and guanine (G). In RNA, uracil (U) replaces thymine. The base provides the genetic information and forms specific base pairs with complementary bases in the double helix structure of DNA.
2. Sugar
The sugar component in a nucleotide is either deoxyribose in DNA or ribose in RNA. These sugars are pentose sugars, meaning they have five carbon atoms. The sugar molecule forms the backbone of the nucleic acid chain and connects the bases together.
3. Phosphate
The phosphate group is a negatively charged molecule that consists of one phosphorus atom bonded to four oxygen atoms. It attaches to the sugar molecule through a phosphodiester bond. The phosphate group provides stability to the nucleotide and allows for the formation of the DNA or RNA backbone.
Composition of a Nucleotide
Therefore, the correct composition of a nucleotide is as follows:
- Base: Adenine (A), Thymine (T), Cytosine (C), Guanine (G), or Uracil (U) in RNA.
- Sugar: Deoxyribose in DNA or Ribose in RNA.
- Phosphate: A negatively charged phosphate group bonded to the sugar molecule.
Conclusion
In summary, nucleotides are composite molecules consisting of a nitrogenous base, a sugar molecule, and a phosphate group. The correct answer is (a) base - sugar - phosphate. Understanding the composition of nucleotides is essential for comprehending the structure and function of nucleic acids.
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(1)Nucleotides are building blocks of nucleic acids. Each nucleotide is a composite molecule formed by a) base - sugar - phosphate b) base - sugar - OH c) (base - sugar - phosphate)n d) sugar - phosphate Correct Answer (a) can you explain this answer?
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(1)Nucleotides are building blocks of nucleic acids. Each nucleotide is a composite molecule formed by a) base - sugar - phosphate b) base - sugar - OH c) (base - sugar - phosphate)n d) sugar - phosphate Correct Answer (a) can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about (1)Nucleotides are building blocks of nucleic acids. Each nucleotide is a composite molecule formed by a) base - sugar - phosphate b) base - sugar - OH c) (base - sugar - phosphate)n d) sugar - phosphate Correct Answer (a) can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for (1)Nucleotides are building blocks of nucleic acids. Each nucleotide is a composite molecule formed by a) base - sugar - phosphate b) base - sugar - OH c) (base - sugar - phosphate)n d) sugar - phosphate Correct Answer (a) can you explain this answer?.
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