Q. No.de Vries based his “Mutation Theory” on his observation on :
1. Pisumsativum
2. Drosophila melanogaster
3. Oenotheralamackiana
4. Coenorhabditiselegans
1. Pisumsativum
2. Drosophila melanogaster
3. Oenotheralamackiana
4. Coenorhabditiselegans
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
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]
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
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
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
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 |
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
According to the modern view of Darwinism, the unit of natural selection is the :
1. population
2. individual
3. species
4. community
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
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 |
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
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
© 2024 GoodEd Technologies Pvt. Ltd.