NEET Biology Cell Cycle And Cell Division Based Practice Questions & Answers with Viewers Discussion and Detailed Explanation
Question & Answer Discuss:
Colchicine is an inhibitory chemical, which
(a) prevents attaching of centromeres with rays
(b) prevents the spindle formation in mitosis
(c) stops the functioning of centriole
(d) prevents the formation of equatorial plane.
Answer: (b)
Colchicine is an alkaloid derived from the autumn crocus, Colchicum autumnale. It inhibits spindle formation in cells during mitosis so that chromosomes cannot separate during anaphase, thus inducing multiple sets of chromosomes. Colchicine is used in genetics, cytology, and plant breeding research and also in cancer therapy to inhibit cell division.
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NEET Biology Quiz
Topic Wise Quizzes-
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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Biotechnology and Its Applications
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Organisms and Populations
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Ecosystem
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Biodiversity and Conservation
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Environmental Issues
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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