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How many types of nucleotides are there in a DNA molecule, and how many types of amino acids are there in a protein?
- a)2 types of nucleotides, 4 types of amino acids
- b)4 types of nucleotides, 20 types of amino acids
- c)3 types of nucleotides, 10 types of amino acids
- d)5 types of nucleotides, 22 types of amino acids
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
How many types of nucleotides are there in a DNA molecule, and how man...
There are 4 types of nucleotides in a DNA molecule, and there are at least 20 types of amino acids in a protein.
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How many types of nucleotides are there in a DNA molecule, and how man...
There are 4 types of nucleotides in a DNA molecule and 20 types of amino acids in a protein.
Explanation:
- DNA (deoxyribonucleic acid) is a molecule that carries the genetic information of an organism. It is composed of a sequence of nucleotides.
- Nucleotides are the building blocks of DNA and RNA (ribonucleic acid). Each nucleotide consists of three components: a sugar molecule (deoxyribose in DNA), a phosphate group, and a nitrogenous base.
- There are four types of nitrogenous bases found in DNA nucleotides: adenine (A), thymine (T), cytosine (C), and guanine (G). These bases pair with each other in a complementary manner: A with T and C with G. This base pairing forms the double helix structure of DNA.
- Therefore, there are four types of nucleotides in a DNA molecule: adenine, thymine, cytosine, and guanine.
- Proteins, on the other hand, are chains of amino acids. Amino acids are organic compounds that contain an amino group (-NH2) and a carboxyl group (-COOH). They are the building blocks of proteins.
- There are 20 different types of amino acids commonly found in proteins. Each amino acid has a unique side chain or R-group that gives it specific properties. These side chains can be polar, nonpolar, acidic, basic, or aromatic, among other characteristics.
- The sequence of amino acids in a protein determines its structure and function. Proteins can have various functions in the body, such as enzymes, structural components, transport molecules, and antibodies.
- The genetic code, encoded in DNA, specifies the sequence of amino acids in a protein. Each set of three nucleotides, called a codon, corresponds to a specific amino acid or a stop signal.
- The genetic code is degenerate, meaning that multiple codons can code for the same amino acid. For example, there are six different codons that code for the amino acid leucine.
- Therefore, there are 20 different types of amino acids that can be incorporated into a protein, determined by the 64 possible codons in the genetic code.
Explanation:
- DNA (deoxyribonucleic acid) is a molecule that carries the genetic information of an organism. It is composed of a sequence of nucleotides.
- Nucleotides are the building blocks of DNA and RNA (ribonucleic acid). Each nucleotide consists of three components: a sugar molecule (deoxyribose in DNA), a phosphate group, and a nitrogenous base.
- There are four types of nitrogenous bases found in DNA nucleotides: adenine (A), thymine (T), cytosine (C), and guanine (G). These bases pair with each other in a complementary manner: A with T and C with G. This base pairing forms the double helix structure of DNA.
- Therefore, there are four types of nucleotides in a DNA molecule: adenine, thymine, cytosine, and guanine.
- Proteins, on the other hand, are chains of amino acids. Amino acids are organic compounds that contain an amino group (-NH2) and a carboxyl group (-COOH). They are the building blocks of proteins.
- There are 20 different types of amino acids commonly found in proteins. Each amino acid has a unique side chain or R-group that gives it specific properties. These side chains can be polar, nonpolar, acidic, basic, or aromatic, among other characteristics.
- The sequence of amino acids in a protein determines its structure and function. Proteins can have various functions in the body, such as enzymes, structural components, transport molecules, and antibodies.
- The genetic code, encoded in DNA, specifies the sequence of amino acids in a protein. Each set of three nucleotides, called a codon, corresponds to a specific amino acid or a stop signal.
- The genetic code is degenerate, meaning that multiple codons can code for the same amino acid. For example, there are six different codons that code for the amino acid leucine.
- Therefore, there are 20 different types of amino acids that can be incorporated into a protein, determined by the 64 possible codons in the genetic code.
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How many types of nucleotides are there in a DNA molecule, and how many types of amino acids are there in a protein?a)2 types of nucleotides, 4 types of amino acidsb)4 types of nucleotides, 20 types of amino acidsc)3 types of nucleotides, 10 types of amino acidsd)5 types of nucleotides, 22 types of amino acidsCorrect answer is option 'B'. Can you explain this answer?
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How many types of nucleotides are there in a DNA molecule, and how many types of amino acids are there in a protein?a)2 types of nucleotides, 4 types of amino acidsb)4 types of nucleotides, 20 types of amino acidsc)3 types of nucleotides, 10 types of amino acidsd)5 types of nucleotides, 22 types of amino acidsCorrect answer is option 'B'. Can you explain this answer? for UPSC 2025 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about How many types of nucleotides are there in a DNA molecule, and how many types of amino acids are there in a protein?a)2 types of nucleotides, 4 types of amino acidsb)4 types of nucleotides, 20 types of amino acidsc)3 types of nucleotides, 10 types of amino acidsd)5 types of nucleotides, 22 types of amino acidsCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for UPSC 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for How many types of nucleotides are there in a DNA molecule, and how many types of amino acids are there in a protein?a)2 types of nucleotides, 4 types of amino acidsb)4 types of nucleotides, 20 types of amino acidsc)3 types of nucleotides, 10 types of amino acidsd)5 types of nucleotides, 22 types of amino acidsCorrect answer is option 'B'. Can you explain this answer?.
How many types of nucleotides are there in a DNA molecule, and how many types of amino acids are there in a protein?a)2 types of nucleotides, 4 types of amino acidsb)4 types of nucleotides, 20 types of amino acidsc)3 types of nucleotides, 10 types of amino acidsd)5 types of nucleotides, 22 types of amino acidsCorrect answer is option 'B'. Can you explain this answer? for UPSC 2025 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about How many types of nucleotides are there in a DNA molecule, and how many types of amino acids are there in a protein?a)2 types of nucleotides, 4 types of amino acidsb)4 types of nucleotides, 20 types of amino acidsc)3 types of nucleotides, 10 types of amino acidsd)5 types of nucleotides, 22 types of amino acidsCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for UPSC 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for How many types of nucleotides are there in a DNA molecule, and how many types of amino acids are there in a protein?a)2 types of nucleotides, 4 types of amino acidsb)4 types of nucleotides, 20 types of amino acidsc)3 types of nucleotides, 10 types of amino acidsd)5 types of nucleotides, 22 types of amino acidsCorrect answer is option 'B'. Can you explain this answer?.
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