Q. No.Match each item in Column I with one item in Column II and chose your answer from the codes given below:
|
Column I |
Column II |
|
I. Sickle cell anemia II. Polyploidy III. Darwin finches IV. Tail in humans |
1. Sympatric speciation 2. Balancing selection 3. Adaptive radiation 4. Atavism |
Codes:
| I | II | III | IV | |
| 1. | 1 | 2 | 3 | 4 |
| 2. | 2 | 1 | 4 | 3 |
| 3. | 2 | 1 | 3 | 4 |
| 4. | 1 | 2 | 4 | 3 |
The differential success in the reproduction, of an organism, in a given environment, is :
| 1. | Adaptation | 2. | Natural Selection |
| 3. | Adaptive radiation | 4. | Saltatory evolution |
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
A Hominid fossil discovered in Java in 1891, now extinct, having a cranial capacity of about 900 cc was:
| 1. | Homo erectus | 2. | Neanderthal man |
| 3. | Homo sapiens | 4. | Australopithecus |
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
Match List-I with List-II:
| List-I | List-II | ||
| (a) | Adaptive radiation | (i) | Selection of resistant varieties due to excessive use of herbicides and pesticides |
| (b) | Convergent evolution | (ii) | Bones of forelimbs in Man and Whale |
| (c) | Divergent evolution | (iii) | Wings of Butterfly and Bird |
| (d) | Evolution by anthropogenic action | (iv) | Darwin Finches |
Choose the correct answer from the options given below:
| (a) | (b) | (c) | (d) | |
| 1. | (ii) | (i) | (iv) | (iii) |
| 2. | (i) | (iv) | (iii) | (ii) |
| 3. | (iv) | (iii) | (ii) | (i) |
| 4. | (iii) | (ii) | (i) | (iv) |
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
The change in the frequency of an existing gene variant in a population due to random sampling of organisms is known as:
| 1. | Saltation | 2. | Adaptive radiation |
| 3. | Genetic drift | 4. | Gene flow |
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
The most critical evolutionary process, that leads to changes in allele frequencies and favors or promotes adaptation as a product of evolution, is :
| 1. | Genetic drift | 2. | Gene migration |
| 3. | Mutation | 4. | Natural selection |
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
All the following are examples of analogous organs except:
| 1. | Thorn and tendrils of Bougainvillea and Cucurbita |
| 2. | Sweet potato and Potato |
| 3. | Flippers of Penguins and Dolphins |
| 4. | Eye of the Octopus and of Mammals |
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
Consider the following statements:
| I: | The thorns and tendrils of Bougainvillea and Cucurbita represent homology. |
| II: | Sweet potato and potato exhibit analogy. |
| III: | Homologous organs are the result of divergent evolution & analogous organs are the result of convergent evolution. |
Which of the above statements are true?
| 1. | I and II only | 2. | I and III only |
| 3. | II and III only | 4. | I, II, and III |
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
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. |
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
© 2024 GoodEd Technologies Pvt. Ltd.