1
AIPMT 2003
MCQ (Single Correct Answer)
+4
-1
Nicotiana sylvestris flowers only during long days and N.tabacum flowers only during short days. If raised in the laboratory under different photoperiods, they can be induced to flower at the same time and can be cross-fertilized to produce self-fertile offspring. What is the best reason for considering N.sylvestris and N.tabacum to be separate species?
2
AIPMT 2003
MCQ (Single Correct Answer)
+4
-1
Plants deficient of element zinc, show its effect on the biosynthesis of plant growth hormone
3
AIPMT 2003
MCQ (Single Correct Answer)
+4
-1
Coconut milk factor is
4
AIPMT 2002
MCQ (Single Correct Answer)
+4
-1
Seed dormancy is due to the
NEET Subjects
Browse all chapters by subject
Physics
Mechanics
Units & Measurement Motion in a Straight Line Motion in a Plane Laws of Motion Work, Energy and Power Center of Mass and Collision Rotational Motion Gravitation Properties of Matter Heat and Thermodynamics Oscillations Waves
Electricity
Electrostatics Current Electricity Capacitor Moving Charges and Magnetism Magnetism and Matter Electromagnetic Induction Alternating Current Electromagnetic Waves
Optics
Modern Physics
Chemistry
Physical Chemistry
Some Basic Concepts of Chemistry Structure of Atom Redox Reactions Gaseous State Chemical Equilibrium Ionic Equilibrium Solutions Thermodynamics Electrochemistry Chemical Kinetics Nuclear Chemistry Solid State Surface Chemistry
Inorganic Chemistry
Periodic Table and Periodicity Chemical Bonding and Molecular Structure Processes of Isolation of Elements s-Block Elements Hydrogen p-Block Elements d and f Block Elements Coordination Compounds Environmental Chemistry
Organic Chemistry
Biology
Botany
Cell - The Unit of Life Biomolecules Cell Cycle and Cell Division Sexual Reproduction in Flowering Plants Microbes in Human Welfare Anatomy of Flowering Plants Transport in Plants Mineral Nutrition Respiration in Plants Biotechnology: Principles and Processes Biodiversity and Conservation The Living World Biological Classification Morphology of Flowering Plants Photosynthesis in Higher Plants Principles of Inheritance and Variation Molecular Basis of Inheritance Strategies for Enhancement in Food Production Biotechnology and It's Applications Organisms and Populations Environmental Issues Plant Kingdom Plant Growth and Development Ecosystem
Zoology
Human Health and Diseases Body Fluids and Its Circulation Locomotion and Movement Neural Control and Coordination Reproduction in Organisms Reproductive Health Structural Organisation in Animals Digestion and Absorption Excretory Products and Their Elimination Chemical Coordination and Integration Human Reproduction Animal Kingdom Breathing and Exchange of Gases Evolution