Check MCQ Questions for Class 12 Biology Chapter 7 Evolution with Answers from CBSE section on e akhabaar
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Evolution Class 12 MCQs Questions with Answers
Multiple Choice Type Questions
Question 1.
Life on earth appeared
(a) 800 million years after the formation of the earth
(b) 700 million years after the formation of he earth
(c) 600 million years after the formation of the earth
(d) 500 million years after the formation of the earth
Answer
Answer: (a) 800 million years after the formation of the earth
Question 2.
The scientist who demonstrated experiments that life comes only from pre-existing life was
(a) Darwin
(b) Mendel
(c) Louis Pasteur
(d) Oparin
Answer
Answer: (c) Louis Pasteur
Question 3.
Name the Russian scientist who proposed that the first form of life could come from pre-existing non living organic molecules and that the formation of life was preceded by chemical evolution.
(a) Darwin
(b) Mendel
(c) Louis Pasteur
(d) Oparin
Answer
Answer: (d) Oparin
Question 4.
Name the English scientist who proposed the same idea that the Russian scientist proposed
(a) Oparin
(b) Haldane
(c) Darwin
(d) Mendel
Answer
Answer: (b) Haldane
Question 5.
Which scientist concluded that existing living forms share similarities to varying degrees not only among themselves but also with life forms that existed millions of years ago?
(a) Darwin
(b) Haldene
(c) Oparin
(d) Mendel
Answer
Answer: (a) Darwin
Question 6.
The name of the naturalist who worked in Malay Archepelago regarding evolution is
(a) Darwin
(b) Alfred Wallace
(c) Haldene
(d) Oparin
Answer
Answer: (b) Alfred Wallace
Question 7.
Homology indicates
(a) Common structure
(b) Common organs
(c) Common brain
(d) Common ancestry
Answer
Answer: (d) Common ancestry
Question 8.
Homology is based on
(a) Divergent evolution
(b) Natural evolution
(c) Unnatural evolution.
(d) None of the above
Answer
Answer: (a) Divergent evolution
Question 9.
Use of herbicides, pesticides etc. has resulted in
(а) More varieties in a much lesser time scale
(b) Less varieties in a much lesser time scale
(c) Resistant varieties in a much lesser time scale
(d) None of the above
Answer
Answer: (c) Resistant varieties in a much lesser time scale
Question 10.
Biological evolution is
(a) Evoluion by natural selection
(b) Evolution by unnatural selection
(c) Could be both (a) and (b)
(d) None of the above
Answer
Answer: (a) Evoluion by natural selection
Question 11.
The work of ……………. on population influenced Darwin.
(a) Mendel
(b) Lamarck
(c) Malthus
(d) None of the above
Answer
Answer: (c) Malthus
Question 12.
The French naturalist who said that evolution of life forms had occurred but driven by use and disuse of organs is
(a) Lamarch
(b) Malthus
(c) Mendel
(d) Darwin
Answer
Answer: (a) Lamarch
Question 13.
The scientist who believed mutation caused speciation and hence called it saltation is
(a) Darwin
(b) Mendel
(c) de Vries
(d) Hardy
Answer
Answer: (c) de Vries
Question 14.
The principle that says that allele frequencies in a population are stable and is constant from generation to generation is
(a) Hardy-Weinberg Principle
(b) Charles Darwin Principle
(c) de Vries Principle
(d) Lamarch Principle
Answer
Answer: (a) Hardy-Weinberg Principle
Question 15.
The first cellular form of life appeared on earth in about
(a) 3000 mya
(b) 2500 mya
(c) 2000 mya
(d) 1500 mya
Answer
Answer: (c) 2000 mya
Fill in the Blanks
Question 1.
…………….. Biology is the study of history of life forms on earth.
Answer
Answer: Evolutionary
Question 2.
The …………….. theory explains to us the origin of universe.
Answer
Answer: Big Bang
Question 3.
…………….. religious tells us about the theory of special creation.
Answer
Answer: conventional
Question 4.
Charles Darwin made a voyage around the world in a ship called ……………..
Answer
Answer: H.M.S. Beagle
Question 5.
…………….. is an extinct organism.
Answer
Answer: Dinosaur
Question 6.
…………….. indicates common ancestry.
Answer
Answer: Homology
Question 7.
The essence of Darwinian theory about evolution is …………….. selection.
Answer
Answer: natural
Question 8.
Branching descent and …………….. are the two key concepts of Darwinian Theory of Evolution.
Answer
Answer: natural selections
Question 9.
The work of …………….., …………….. on populations influenced Darwin.
Answer
Answer: Thomas Malthus
Question 10.
the first mammals were like ……………..
Answer
Answer: shrews.
Write True or False
Question 1.
The Big Bang theory explains to us the origin of universe.
Answer
Answer: True
Question 2.
The UV rays from the sun broke up water into hydrogen and carbondioxide.
Answer
Answer: False
Question 3.
Haldane of Germany proposed that the first form of life could have come from pre-existing non-living organic molecules.
Answer
Answer: False
Question 4.
Conventional religious theory has three connotations.
Answer
Answer: True
Question 5.
The essence of Darwinian theory about evolution is natural selection.
Answer
Answer: True
Question 6.
Alfred worked on populations.
Answer
Answer: False
Question 7.
A French naturalist Lamarch had said that evolution of life forms has occurred but driven by use and desire of organs.
Answer
Answer: True
Question 8.
Four factors are known to affect Hardy-Weinberg equilibrium.
Answer
Answer: False
Question 9.
The biggest dinosaur is called Tyrannosaurs.
Answer
Answer: True
Question 10.
The land reptiles are referred to dinosaurs.
Answer
Answer: True
One Word Questions
Question 1.
Name the scientist who demonstrated experiments that life comes only from pre-existing life forms.
Answer
Answer: Louis Pasteur.
Question 2.
Name the Russian scientist who contributed towards the theory of evolution.
Answer
Answer: Oparin.
Question 3.
Name the naturalist who worked in Malay Archepelago regarding evolution.
Answer
Answer: Alfred Wallace.
Question 4.
What is the study of history of life forms on earth called?
Answer
Answer: Evolutionary Biology.
Question 5.
Name the theory which explains the origin of universe.
Answer
Answer: Big Bang Theory.
Question 6.
Name the English scientist who proposed that the first form of life came from pre-existing non-living organic molecules.
Answer
Answer: Haldane.
Question 7.
How many connotations are there in the conventional religious literature of special creation?
Answer
Answer: Three.
Question 8.
Can the ages of the fosseakhabaar be calculated?
Answer
Answer: Yes
Question 9.
By what name was the first human known as?
Answer
Answer: Homo habilis.
Question 10
…………… lived in East African grasslands.
Answer
Answer: Australopitheines.
Match the Following
| Column I | Column II |
| 1. Louis Pasteur | A. Life form from pre-existing non-organic organic molecules |
| 2. Oparin | B. Sail-ship |
| 3. H.M.S. Beagle | C. Evolution of life-form |
| 4. Charles Darwin | D. Work on population |
| 5. Thomas Malthus | E. Experiments on evolution |
Answer
Answer:
| Column I | Column II |
| 1. Louis Pasteur | E. Experiments on evolution |
| 2. Oparin | A. Life form from pre-existing non-organic organic molecules |
| 3. H.M.S. Beagle | B. Sail-ship |
| 4. Charles Darwin | C. Evolution of life-form |
| 5. Thomas Malthus | D. Work on population |
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