genetics, evolution of life & ecological biodiversity - Category wise Question and Answer Practice Test with Solutions
genetics, evolution of life & ecological biodiversity PRACTICE TEST [5 - EXERCISES]
set 1
set 2
set 3
set 4
set 5
Question : 1
Homologous organs are
a) gills of fish and lungs of rabbit
b) pectoral fins of fish and fore limbs of horse
c) wings of insects and bat
d) wings of grosshopper and crow
Answer »Answer: (b)
Organs that are similar in fundamental structure but different in functions are “homologous organs”, Richard Owen, introduced the term homologous. Pectoral fins of fish and fore limbs of horse similar in structure but different in functions are homologous organs. Rest of the organs compared in the question are analogous organs.
Question : 2
Gene for colour blindness is located on
a) X-chromosome
b) 13th chromosome
c) Y-chromosome
d) 21st chromosome
Answer »Answer: (a)
The gene which is responsible for colour blindness is carried on the X chromosome and this is the reason why many more men are affected than women. The blindness is manifested in terms of inability to distinguish between red and green colour.
Question : 3
Match List-I with List-II :
List-I (Name of the Scientist) | List-II (Contributions) |
A. Charles Darwin | I. Mutation theory |
B. Lamarck | II. Germplasm theory |
C. Hugo de Vries | III. Philosophie Zoologique |
D. Ernst Haeckel | IV. The Origin of species |
E. August Weismann | V. Biogenetic law |
VI. Essay on population |
a) A – IV; B – VI; C – V; D – III; E – I
b) A – IV; B – III; C – I; D – V; E – II
c) A – IV; B – III; C – V; D – I; E – VI
d) A – II; B – III; C – I; D – V; E – II
Answer »Answer: (b)
IMPORTANT general science mcq EXERCISES
set 3 Online Quiz
Click to Start..general science mcq CATEGORIES
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» Measurement And SI Units
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» Measuring Devices And Scales
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» Mechanics (Mass, Force, Acceleration, Work, Energy, Momentum, Velocity)
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» Force Of Gravity, Solids And Fluids
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» Motion Under Gravity
-
» Physical Properties Of Materials
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» Light, Heat, Thermodynamics, Wave Motion, Sound, Optics & Oscillations
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» Electric Current And Magnetism
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» Nuclear Physics And Conductivity
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» Modern And Space Physics, Sources Of Energy
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» General Concepts Of Chemistry
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» Nature Of Matter And Composition
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» Atomic Structure Molecules And Nuclear Chemistry
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» Classification Of Elements, Chemical Bonding, Periodicity In Properties & Physical Transformation
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» Metals, Non Metals, Minerals, Ores, Properties, Uses
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» Alloys, Carbon & Its Various Forms, Hydrogen & Compounds, Sulphur, Nitrogen, Halogen & Inert Gases
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» Acids, Bases, Salts And Metals
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» Hydrocarbon, Alcohol, Polymer, Organic Acid And Explosive Substance
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» Fuel, Food Preservation, Nutrition, Medicine, Detergents And Fertilizers
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» Inorganic Chemistry
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» Organic Chemistry
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» Environmental Chemistry
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» Some Important Man Made Materials
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» Sub Divisions Of Biology
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» Genetics, Evolution Of Life & Ecological Biodiversity
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» Taxonomy
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» Heredity
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» Biofertilizer
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» Biological Classification Cell Tissues And Division
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» Human Anatomy
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» Blood Transport System
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» Digestion And Excretion
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» Photosynthesis
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» Vitamins, Nutrition, Health, Disease And Treatment
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» Endocrine Glands, Hormones
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» Physiology Of Plants, Humans And Animals
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» Reproduction
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» Genetic Engineering And Bio Technology
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