16 public questions tagged with this topic.
Hydrogen bonds between complementary base pairs are broken during DNA denaturation, allowing strand separation in processes like PCR.
Ref: NCERT Class 12 Biology Chapter 9: Biotechnology: Principles and Processes Polymerase Chain Reaction - PCR and Applications
Hydrogen bonds between complementary base pairs stabilize the DNA double helix.
Ref: NCERT Class 12 Biology Chapter 5: Molecular Basis of Inheritance DNA Structure Double Helix and Packaging - Nucleosome
Disulfide bonds between cysteine residues help stabilize the tertiary structure of proteins.
Ref: NCERT Class 11 Biology Chapter 9: Biomolecules Enzyme Action and Factors Affecting Enzyme Activity
Hydrogen bonds stabilize the alpha-helix and beta-sheet structures in the secondary structure of proteins.
Ref: NCERT Class 11 Biology Chapter 9: Biomolecules Enzyme Action and Factors Affecting Enzyme Activity
4 is obtained by applying the relevant formula or quantitative relationship to the given parameters. In Chemical Bonding, numerical problem-solving requires understanding the mathematical relationships between biological variables. The calculation involves substituting the provided values into the appropriate equation and solving systematically. The other options (1, 2, and 3) result from common calculation errors such as using incorrect formulas, misidentifying variables, inverting ratios, or making arithmetic mistakes.
Ref: Campbell Biology, Urry et al., 12th Ed.
O-H---O is the scientifically accurate answer to this question. Within the study of Chemical Bonding, this concept is well-established through extensive research and is documented in standard scientific literature. The specific properties, mechanisms, or characteristics of O-H---O directly address what is being asked. Among the other options, O-H---N, N-H---O, and N-H---N do not correctly answer this question because they either refer to different concepts, describe properties of other molecules or processes, or represent common misconceptions about this topic.
Ref: Campbell Biology, Urry et al., 12th Ed.
N-H---F is the scientifically accurate answer to this question. Within the study of Chemical Bonding, this concept is well-established through extensive research and is documented in standard scientific literature. The specific properties, mechanisms, or characteristics of N-H---F directly address what is being asked. Among the other options, O-H---O, O-H---N, and N-H---N do not correctly answer this question because they either refer to different concepts, describe properties of other molecules or processes, or represent common misconceptions about this topic.
Ref: Campbell Biology, Urry et al., 12th Ed.
4 accurately defines or describes the concept asked in this question. Within Chemical Bonding, precise definitions and terminology are essential for clear scientific communication. The other options (2, 3, and 6) either describe related but distinct concepts, use incorrect terminology, or confuse similar-sounding terms that have different scientific meanings. A thorough understanding of exact definitions helps distinguish between closely related biological concepts and is crucial for competitive examinations.
Ref: Campbell Biology, Urry et al., 12th Ed.
180° is the scientifically accurate answer to this question. Within the study of Chemical Bonding, this concept is well-established through extensive research and is documented in standard scientific literature. The specific properties, mechanisms, or characteristics of 180° directly address what is being asked. Among the other options, 120°, 150°, and 90° do not correctly answer this question because they either refer to different concepts, describe properties of other molecules or processes, or represent common misconceptions about this topic.
Ref: Campbell Biology, Urry et al., 12th Ed.
90% electrostatic and 10% covalent accurately defines or describes the concept asked in this question. Within Chemical Bonding, precise definitions and terminology are essential for clear scientific communication. The other options (100% covalent, 50% covalent and 50% electrostatic, and 100% electrostatic) either describe related but distinct concepts, use incorrect terminology, or confuse similar-sounding terms that have different scientific meanings. A thorough understanding of exact definitions helps distinguish between closely related biological concepts and is crucial for competitive examinations.
Ref: Campbell Biology, Urry et al., 12th Ed.
CO(i) to NH(i+3) is the scientifically accurate answer to this question. Within the study of Protein Structure, this concept is well-established through extensive research and is documented in standard scientific literature. The specific properties, mechanisms, or characteristics of CO(i) to NH(i+3) directly address what is being asked. Among the other options, CO(i) to NH(i+1), CO(i) to NH(i+2), and CO(i) to NH(i+4) do not correctly answer this question because they either refer to different concepts, describe properties of other molecules or processes, or represent common misconceptions about this topic.
Ref: Lehninger Principles of Biochemistry, Nelson & Cox, 8th Ed., Ch. 4
C=O of residue i and NH of residue i+3 is the scientifically accurate answer to this question. Within the study of Protein Structure, this concept is well-established through extensive research and is documented in standard scientific literature. The specific properties, mechanisms, or characteristics of C=O of residue i and NH of residue i+3 directly address what is being asked. Among the other options, C=O of residue i and NH of residue i+4, C=O of residue i and NH of residue i+5, and C=O of residue i and NH of residue i+10 do not correctly answer this question because they either refer to different concepts, describe properties of other molecules or processes, or represent common misconceptions about this topic.
Ref: Lehninger Principles of Biochemistry, Nelson & Cox, 8th Ed., Ch. 4
