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 : 2
In which one of the following sets of animals do all the four give birth to young ones?
a) Kangaroo, Hedgehog, Dolphin, , Loris
b) Platypus, Penguin, Bat, Hippopotamus
c) Shrew, Bat, Cat, Kiwi
d) Lion, Bat, Whale, Ostrich
Answer »Answer: (a)
Penguin, kiwi & ostrich all belong to class Aves of chordata (i.e. birds) and they do not give birth to their young ones, they are oviparous while kangaroo, hedgehog, dolphin, loris all belong to class mammalia and are viviparous.
Question : 4
Consider the following statements :
- Human beings have 23 pairs of chromosomes.
- Sex chromosome in human male are named XY.
- Chromosomes are best seen in metaphase.
a) 1, 2 and 3
b) 2 and 3
c) 1 and 2
d) None
Answer »Answer: (d)
Humans have 46 chromosomes i.e., 23 pairs of chromosomes, of which 21 pairs are autosomes and 2 pairs are allosomes or sex chromosomes.
Human male sex chromosomes are named XY. During cell division, the chromosomes of every cell are most condensed are arrange themselves on the equatorial plane which makes them best visible.
IMPORTANT general science mcq EXERCISES
set 4 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
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» 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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