Biology - Evolution
Exam Duration: 60 Mins Total Questions : 30
Which of the organs given below is/are homologous?
1. Flipper of a seal 2. Wing of a bat
3. Arm of a man 4. Wing of a moth
Which of the statements given above are correct?
- (a)
2, 3 and 4
- (b)
3 and 4
- (c)
1, 2 and 3
- (d)
All of these
Which one of the following is an example of vestigial organ in man?
- (a)
Jaw apparatus
- (b)
Ear muscles
- (c)
Canine teeth
- (d)
Humerus
In terms of the evolution of organisms, which one among the following is the most advanced?
- (a)
Bat-Mammal
- (b)
Pigeon-Aves
- (c)
Shark-Pisces
- (d)
Vulture-Aves
A true species in Mauritius failed to reproduce because of the extinction of a fruit-eating bird. Which one of the following was that bird?
- (a)
Dove
- (b)
Dodo
- (c)
Condor
- (d)
Skude
Consider the following statements
1. Hugo de Vries gave the Mutation Theory to explain the mechanism of evolution.
2. Mutation are discontinuous variations also called Saltatory Variation.
3. Mutations are the ultimate source of organic variations.
Which of the statements given above are correct about mutation?
- (a)
1, 2 and 3
- (b)
2 and 3
- (c)
1 and 2
- (d)
1 and 3
Within ecological communities, some species are important in determining the ability of a large number of other species to persist in the community such species are called
- (a)
Keystone species
- (b)
Allopatric species
- (c)
Sympatric species
- (d)
Threatened species
Consider the following statements
1. Homologous organs are common origin with different functions.
2. Analogous organs are different origin but perform similar function in different organisms.
3. Vestigial organs are non-functional and rudimentary organs in an organism which are fully developed and functional in phylogenetically related organisms.
Which of the statements given above are correct?
- (a)
1 and 2
- (b)
2 and 3
- (c)
1 and 3
- (d)
1, 2 and 3
With reference to the evolution of living organism, which one of the following sequences is correct?
- (a)
Octopus - Dolphin - Shark
- (b)
Pangolin - Tortoise - Hawk
- (c)
Salamander - Python - Kangaroo
- (d)
Frog - Crab - Prawn
Consider the following statements
1. Early atmosphere was reducing (without free oxygen) comprising water vapour. hydrogen, ammonia and methane.
2. Most essential criteria for the origin of life is presence of water.
3. Life originated from complex organic molecules gases reacting with water to form the so-called Haldane's hot dilute soup.
Which of the statement(s) given above is/are true?
- (a)
Only 1
- (b)
Only 2
- (c)
2 and 3
- (d)
1, 2 and 3
Match List I and List II and select the correct answer using the codes given below the lists.
List I | List II |
A. Cosmozoic | 1. Richter |
B. theory of inheritances of acquired characters | 2. Lamarck |
C. Theory if biogenesis | 3. Darwin |
D. Theory of natural selection | 4. Redi, Spallazani and Pasteur |
- (a)
A B C D 1 2 4 3 - (b)
A B C D 2 4 3 1 - (c)
A B C D 1 3 1 2 - (d)
A B C D 3 1 2 4
Living organisms are kept separate from closely related species inhabiting the same geographical region by reproductive isolating mechanism called
- (a)
Phylogenetic species concept
- (b)
Morphological species concept
- (c)
Genetic species concept
- (d)
Biological species concept
To study the evolutionary kingdoms, which one of the followings will be very useful?
- (a)
Fossils
- (b)
Missing links
- (c)
Connecting links
- (d)
All of these
The biological species concept of organisms is based on
- (a)
Morphological traits
- (b)
Evolutionary traits
- (c)
Reproductive isolation
- (d)
Geographical isolation
The first geological time scale was developed by
- (a)
Giovani Arduina
- (b)
William Smith
- (c)
R Malthus
- (d)
Georges Cuvier
Which of the following island is known as 'Biological Paradise'?
- (a)
Madagascar island
- (b)
Sandwich island
- (c)
St. Helena island
- (d)
Due to Darwin finches
The classification of Engler and Prantl is one which is based on
- (a)
Morphology of organisms
- (b)
Utilitarian system
- (c)
Habit of organisms
- (d)
Common evolutionary descent
Match List I with List II and select the correct answer using the codes given below the lists.
List I | List II |
A. Mesozoic | 1. Age of mammals |
B. Devonian | 2. Age of reptiles |
C. Missipian | 3. Age of fishes |
D. Coenizoic | 4. Carboniferous period |
- (a)
A B C D 1 2 3 4 - (b)
A B C D 4 1 2 3 - (c)
A B C D 3 4 1 2 - (d)
A B C D 2 3 4 1
Consider the following statements
1. Live in the same geographical area.
2. Live in isolated geographical area.
3. They are an interbreeding population.
4. They are reproductively isolated.
Which of the statements given above are correct about the reproductively isolated?
- (a)
1, 2, 3 and 4
- (b)
1, 2 and 4
- (c)
1 and 4
- (d)
2 and 4
Consider the following
1. Fins of fishes.
2. Fins of ichthyosaurs.
3. Flippers of whale.
Which of the organ(s) given above is/are 'analogous organs'?
- (a)
1, 2 and 3
- (b)
1 and 3
- (c)
2 and 3
- (d)
Only 3
Consider the following statements
1. The first organisms were heterotrophs.
2. Life appeared first in water.
3. there is no life on moon because of absence of water.
Wich of the statements given above are true?
- (a)
1 and 2
- (b)
2 and 3
- (c)
1, 2 and 3
- (d)
None of the above
Study the following statements
1. Evolutionary development of a species can be best studied by studying fossils of this species.
2. Human evolution is originated in Africa.
3. Wings of pigeon, bat and mosquito exhibit the phenomena is called Convergent Evolution.
Which of the statements given above are correct?
- (a)
1 and 2
- (b)
2 and 3
- (c)
1, 2 and 3
- (d)
None of the above
Choose the correct sequence during formation of chemicals on early Earth
- (a)
Ammonia, water, nucleic acid and protein
- (b)
Ammonia, protein, carbohydrates and nucleic acid
- (c)
Ammonia, nucleic acid, protein and carbohydrate
- (d)
Protein, carbohydrate, water and nucleic acid
Early atmosphere contained methane and other hydrocarbons they have been now replaced by
- (a)
Nitrogen
- (b)
Oxygen
- (c)
Carbon dioxide
- (d)
Hydrogen
Presence of gill in the tadpole of frog indicates that
- (a)
Fish evolved from frog-like ancestor
- (b)
Frogs will have gills in future
- (c)
Frogs evolved from gilled ancestor
- (d)
Fishes were amphibious in the past
Cenozoic era is known as an age of
- (a)
Amphibians and lycopods
- (b)
Marine invertebrates
- (c)
Reptiles and gymnosperms
- (d)
Mammals and modern flora
Consider the following statements
1. The process of destroying all living organisms is called Sterilization.
2. Archaebacteria is known as oldest living fossil.
Which of the statement(s) given above is/are correct?
- (a)
Only 1
- (b)
Only 2
- (c)
1 and 2
- (d)
None of these
Match List I with List II and select the correct answer using the codes given below the lists.
List I | List II |
A. Theory of mutation | 1. Beadle and Tatum |
B. Theory of evolution | 2. Jacob and Monod |
C. One gene-one enzyme hypothesis | 3. Darwin |
D. Operon concept | 4. Hugo de Vries |
- (a)
A B C D 3 4 1 2 - (b)
A B C D 4 3 1 2 - (c)
A B C D 4 3 2 1 - (d)
A B C D 3 4 2 1
The complex organic compounds that may have first evolved in the direction of origin of life on earth may have been
- (a)
Protein and amino acids
- (b)
Protein and nucleic acids
- (c)
Urea and nucleic acids
- (d)
Urea and amino acid
The present giraffe has a long neck as compared to its ancestors. Lamarck believed it could be due to
- (a)
Natural selection
- (b)
Isolation
- (c)
Inheritance of acquired characters
- (d)
Speciation
Which of the following is the correct pair?
- (a)
Darwin : Use and disuse of organs
:
- (b)
de Vries : Mutation theory
- (c)
Lamarck : Origin of life
- (d)
Haldane : Law of heredity