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Q. No.The Hardy-Weinberg equilibrium states that allele frequencies in a population remain constant unless acted upon by evolutionary forces. Which of the following does NOT affect Hardy-Weinberg equilibrium?
1.
Gene flow
2.
Genetic drift
3.
Natural selection
4.
Law of independent assortment
Subtopic: Hardy Weinberg Law |
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Evolution for Darwin was gradual while deVries believed mutation caused speciation and hence called it:
1. Saltation
2. Natural selection
3. Genetic drift
4. Adaptive radiation
1. Saltation
2. Natural selection
3. Genetic drift
4. Adaptive radiation
Subtopic: Mechanism of Evolution |
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What evolutionary process is shown in the given figure?
1. Adaptive radiation
2. Industrial melanism
3. Saltation
4. Genetic equilibrium
1. Adaptive radiation
2. Industrial melanism
3. Saltation
4. Genetic equilibrium
Subtopic: What is Adaptive Radiation |
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Who demonstrated through careful experimentation that life arises only from pre-existing life, thereby dismissing the theory of spontaneous generation?
1. Anton van Leeuwenhoek
2. Robert Koch
3. Louis Pasteur
4. Alexander Fleming
1. Anton van Leeuwenhoek
2. Robert Koch
3. Louis Pasteur
4. Alexander Fleming
Subtopic: Origin of Life |
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Who proposed that speciation occurs through single-step large mutations, a process termed as saltation?
1. Hugo de Vries
2. Charles Darwin
3. Alfred Wallace
4. Gregor Mendel
1. Hugo de Vries
2. Charles Darwin
3. Alfred Wallace
4. Gregor Mendel
Subtopic: Mechanism of Evolution |
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Natural selection in which more individuals acquire mean character value is called as:
1. Stabilising
2. Directional
3. Disruptive
4. Retrograde
1. Stabilising
2. Directional
3. Disruptive
4. Retrograde
Subtopic: Hardy Weinberg Law |
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Which of the following had a brain size of 1400cc and lived in near east and central Asia between 1,00,000-40,000 years back?
1. Homo habilis
2. Homo erectus
3. Neanderthal man
4. Australopithecus
1. Homo habilis
2. Homo erectus
3. Neanderthal man
4. Australopithecus
Subtopic: Introduction to Human Evolution | Classification of Primates | Evolution of Homo Sapiens |
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Alfred Wallace, working in the Malay Archipelago, arrived at conclusions similar to those of Charles Darwin regarding:
| 1. | The role of genetic mutations in evolution |
| 2. | The concept of acquired traits being inherited |
| 3. | The process of natural selection |
| 4. | The role of spontaneous generation in evolution |
Subtopic: Theory of Evolution & Lamarckism |
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Louis Pasteur’s experiment played a key role in disproving the theory of spontaneous generation. What was the key observation in his experiment?
| 1. | Life originated in sterilized flasks containing dead yeast. |
| 2. | No new life appeared in pre-sterilized flasks, while new organisms appeared in flasks open to air. |
| 3. | New living organisms arose from killed yeast even in pre-sterilized, sealed flasks. |
| 4. | Life was seen in both open and closed flasks, proving spontaneous generation. |
Subtopic: Origin of Life |
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Which of the following is a correct example of analogous structures that evolved due to convergent evolution?
| 1. | Wings of bats and wings of birds, as both evolved from a common ancestor. |
| 2. | Flippers of whales and fins of sharks, as both are adaptations for swimming but have different evolutionary origins. |
| 3. | Forelimbs of humans and forelimbs of lizards, as both have the same skeletal structure. |
| 4. | Legs of frogs and hindlimbs of rabbits, as both belong to vertebrates. |
Subtopic: Embryological Evidence of Evolution |
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