Match the scientists listed under column I with ideas listed column II.
Column l |
Column ll |
||
A. |
Darwin |
1 |
abiogenesis |
B. |
Oparin |
2 |
use and disuse of organs |
C. |
Lamarck |
3 |
continental drift theory |
D. |
Wagner |
4 |
evolution by natural selection |
Codes
Options: | A | B | C | D |
1. | 1 | 4 | 2 | 3 |
2. | 4 | 1 | 2 | 3 |
3. | 2 | 4 | 3 | 1 |
4. | 4 | 3 | 2 | 1 |
Which of the following refers to correct example(s) of organisms that have evolved due to changes in environment brought about by anthropogenic action?
(a) Darwin's Finches of Galapagos islands
(b) Herbicide-resistant weeds
(c) Drug-resistant eukaryotes
(d) Man-created breeds of domesticated animals like dogs
1. (a) and (c)
2. (b), (c) and (d)
3. only (d)
4. only (a)
The increase in the frequency of one phenotype in a wild population of fish could be due to:
a. an advantageous mutation.
b. increased reproductive success of individuals with that phenotype.
c. a change in the environment.
1. c only
2. a and b only
3. a, b and c
4. b and c only
Which of the following organisms are subject to natural selection?
a. prokaryotes that reproduce asexually
b. single-celled eukaryotes that reproduce sexually
c. organisms living in a changing environment
d. organisms living in a stable environment
1. a and b only
2. b and c only
3. c and d only
4. a, b, c and d
Which of the following can be random processes?
1 genetic drift
2 mutations
3 artificial selection
1. 2 and 3 only
2. 1, 2 and 3
3. 1 and 2 only
4. none of them
Which of the following could be the outcome of evolution?
a) speciation
b) a change in allele frequency
c) increased biodiversity
1. b and c only
2. a only
3. a and c only
4. a, b and c
Statement I: | In England, during the Industrial Revolution, the black-colored form of Biston Betularia became dominant over the light-colored form of moth because of natural selection, the darker forms were selected. |
Statement II: | Prior to the Industrial Revolution, the peppered moths exhibited protective mimicry and the light-colored moths were not noticed by predatory birds due to light-colored lichens on the bark of trees. |
Statement I: | Mutations are random and direction less, while Darwinian variations are small and directional. |
Statement II: | Darwin's finches represent one of the best examples of adaptive radiation. |