Q. No.Adenine was synthesized by Orgel, using the Miller apparatus, when he used the gas :
1. carbon dioxide
2. hydrogen cyanide
3. hydrogen sulfide
4. nitrogen
1. carbon dioxide
2. hydrogen cyanide
3. hydrogen sulfide
4. nitrogen
The ‘phrase’ that will best describe ‘Natural Selection’ will be:
1. differential success in reproduction
2. differential mortality
3. assortative mating
4. descent with modification
In organic evolution what is it that actually evolves?
| 1. | individual | 2. | family |
| 3. | population | 4. | species |
The extinct reptilian lineage that evolved into dinosaurs and later on the birds is:
| 1. | Pelycosaurs | 2. | Synapsids |
| 3. | Tuataras | 4. | Thecodonts |
Fishes with stout and strong fins that could move on land and go back to water existed about:
| 1. | 500 mya | 2. | 350 mya |
| 3. | 320 mya | 4. | 300 mya |
Identify the incorrectly matched pair:
| 1. | Cretaceous period : dinosaurs became extinct |
| 2. | Carboniferous period : origin of reptiles |
| 3. | Silurian period : origin of vascular plants |
| 4. | Cambrian period : first vertebrates (jawless fishes) |
de Vries based his “Mutation Theory” on his observation on :
1. Pisumsativum
2. Drosophila melanogaster
3. Oenotheralamackiana
4. Coenorhabditiselegans
Which of the following is a useful tool to measure microevolution?
1. Genetic drift
2. Hardy-Weinberg equation
3. Mendelian ratios
4. Age/sex ratio
The connecting link between the fishes and amphibians are the:
1. Seymouria
2. Peripatus
3. Cartilaginous fishes
4. Coelocanths [lobe finned fishes]
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
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