Q. No.The essay “On the tendencies of Varieties to Depart Indefinitely from the Original Type” was authored by :
1. A.R.Wallace
2. Charles Darwin
3. Charles Lyell
4. Joseph Dalton Hooker
1. A.R.Wallace
2. Charles Darwin
3. Charles Lyell
4. Joseph Dalton Hooker
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The “Replica Plating Experiment” proved that :
1. most mutations are harmful or neutral
2. mutations are recurring in nature
3. all mutations are pre-adaptive in nature
4. mutations occur in a non-directional manner
The type of natural selection that operates to eliminate intermediate phenotypes in a population is known as:
| 1. | Directional selection | 2. | Disruptive selection |
| 3. | Stabilizing selection | 4. | Reverse selection |
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According to the modern view of Darwinism, the unit of natural selection is the :
1. population
2. individual
3. species
4. community
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According to the Darwinian concept of evolution, a giraffe has a long neck because:
| 1. | it was always like that since the beginning |
| 2. | during evolution the number of cervical vertebrae got increased |
| 3. | its ancestors stretched their necks to get food |
| 4. | ancestral giraffes with longer necks got more food and left more surviving offspring |
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Self pollination leading to self fertilization in a plant will be an extreme example of:
1. bottleneck effect
2. founder effect
3. out breeding
4. assortative mating
Which of the following is not a finding observed by Darwin, when he landed on the Galapagos Islands?
| 1. | Woodpeckers were absent on the islands |
| 2. | The island species resembled the mainland species |
| 3. | Islands contain more different species of finches than the mainland |
| 4. | The corresponding size of the species was smaller on the islands than the species on the mainland |
Identify the incorrect fact regarding the Neanderthal man:
1. Cranial capacity of around 1400 cc
2. Lived in East and Central Africa
3. Used hides to protect their bodies
4. Buried their dead
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If there are two forms of a specific enzyme in a population, and if the relative frequencies of the individuals possessing each form of the enzyme changes, then certainly there is:
| 1. | mutation | 2. | genetic drift |
| 3. | gene migration | 4. | evolution |
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