Q. No.What is genetic equilibrium?
1.
When all the alleles of a gene are present in a population in equal frequencies
2.
When the number of heterozygotes in a population is equal to the number of either of the homozygote.
3.
When the number of heterozygotes in a population is equal to the number of either of the homozygote.
4.
When the frequency of particular genes or alleles remains constant in a population through generations
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 the most important precondition for speciation to occur?
1. Reproductive isolation
2. A crash of the population size
3. Adaptive radiation
4. Random mating
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.
Some of the marsupials of Australia resemble equivalent placental mammals that live in similar habitats on other continents. This is an example of:
| 1. | Convergent evolution | 2. | Divergent evolution |
| 3. | Saltatory evolution | 4. | Adaptive radiation |
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 not a precondition for Hardy-Weinberg Equilibrium?
1. The population should be large
2. The mating should be assortative
3. There is no gene flow into or out of the population
4. All offspring should be equally fertile.
For the origin of life, which of the following is not a precondition needed to be fulfilled by the protobionts under consideration?
| 1. | They should have been able to totally isolate themselves from the general environment. |
| 2. | They should have been able to replicate. |
| 3. | They should have acquired a perpetual source of energy. |
| 4. | Their replication should have been subject to error via mutation. |
For the stability of the organic compounds, Oparin opined that, probably:
| 1. | UV radiation never reached the surface of the primeval Earth |
| 2. | the primeval Earth was in a molten state |
| 3. | the primeval Earth atmosphere was reducing rather than oxidizing |
| 4. | plenty of energy sources were available for chemical reactions to occur |
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.
Natural selection operates on the _______ of an individual organism.
| 1. | survival | 2. | environment |
| 3. | genotype | 4. | phenotype |
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.
Stabilizing selection acts to _________ in a species' population.
1. elaborate new traits
2. alter traits
3. push for directional change
4. maintain a certain phenotype
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.
Gene flow is :
1. the migration of species populations to new areas
2. the exchange of genes during fertilization
3. mating between close relatives
4. the movement of genes between species populations
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.
© 2024 GoodEd Technologies Pvt. Ltd.