Which statement most accurately reflects what population geneticists refer to as "fitness"?
1. | Fitness is the measure of an organism's adaptability to various habitats. |
2. | Fitness reflects the number of mates each individual in the population selects. |
3. | Fitness refers to the relative health of each individual in the population. |
4. | Fitness is a measure of the contribution of a genotype to the gene pool of the next generation. |
1. | Darwin did not believe in the inheritance of acquired traits while Hugo de Vries did. |
2. | Evolution for Darwin was gradual while Hugo de Vries believed mutation caused speciation. |
3. | Evolution for Darwin was a stochastic process and for Hugo de Vries was a determinist process. |
4. | Fitness for Darwin was reproductive fitness and for Hugo de Vries was physical fitness. |
Assertion (A): | Darwin's finches are an often-used textbook example of adaptive radiation. |
Reason (R): | Darwin's finches are Galapagos endemics famously adapted for a specialized feeding behavior. |
1. | Both (A) and (R) are True but the (R) does not correctly explain (A). |
2. | Both (A) and (R) are True and the (R) correctly explains (A). |
3. | (A) is False but (R) is True. |
4. | (A) is True but (R) is False. |
1. | Nature selects for fitness |
2. | There must be a genetic basis for getting selected and to evolve |
3. | Evolution is driven by use and disuse of organs |
4. | Those who are selected by nature reproduce more and leave more progeny |