NEET Biology Biomolecules Based Practice Questions & Answers with Viewers Discussion and Detailed Explanation
Question & Answer Discuss:
A segment of DNA has 120 adenine and 120 cytosine bases. The total number of nucleotides present in the segment is
(a) 240
(b) 120
(c) 60
(d) 480.
Answer: (d)
According to Chargaff's rules, the amount of adenine is always equal to that of thymine, and the amount of guanine is always equal to that of cytosine i.e., A = T (120) and G = C (120), therefore, the total no. of nucleotides would be 120 × 4 = 480.
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The Living World
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Biological Classification
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Plant Kingdom
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Animal Kingdom
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Morphology of Flowering Plants
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Anatomy of Flowering Plants
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Structural Organisation in Animals
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Cell-The Unit of Life
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Biomolecules
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Cell Cycle and Cell Division
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Transport in Plants
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Mineral Nutrition
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Photosynthesis in Higher Plants
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Respiration in Plants
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Plant Growth and Development
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Digestion and Absorption
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Breathing and Exchange of Gases
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Body Fluids and Circulation
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Excretory Products and Their Elimination
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Locomotion and Movement
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Neural Control and Coordination
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Chemical Coordination and Integration
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Reproduction In Organisms
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Sexual Reproduction in Flowering Plants
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Human Reproduction
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Reproductive Health
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Principles of Inheritance and Variation
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Molecular Basis of Inheritance
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Evolution
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Human Health and Diseases
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Strategies for Enhancement in Food Production
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Microbes in Human Welfare
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Biotechnology: Principles and Processes
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NEET Biology MCQ Topic Wise Exercise
-
The Living World
-
Biological Classification
-
Plant Kingdom
-
Animal Kingdom
-
Morphology of Flowering Plants
-
Anatomy of Flowering Plants
-
Structural Organisation in Animals
-
Cell-The Unit of Life
-
Biomolecules
-
Cell Cycle and Cell Division
-
Transport in Plants
-
Mineral Nutrition
-
Photosynthesis in Higher Plants
-
Respiration in Plants
-
Plant Growth and Development
-
Digestion and Absorption
-
Breathing and Exchange of Gases
-
Body Fluids and Circulation
-
Excretory Products and Their Elimination
-
Locomotion and Movement
-
Neural Control and Coordination
-
Chemical Coordination and Integration
-
Reproduction In Organisms
-
Sexual Reproduction in Flowering Plants
-
Human Reproduction
-
Reproductive Health
-
Principles of Inheritance and Variation
-
Molecular Basis of Inheritance
-
Evolution
-
Human Health and Diseases
-
Strategies for Enhancement in Food Production
-
Microbes in Human Welfare
-
Biotechnology: Principles and Processes
-
Biotechnology and Its Applications
-
Organisms and Populations
-
Ecosystem
-
Biodiversity and Conservation
-
Environmental Issues
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