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Q. No.How many statements given below are correct?
(a)
Seed ferns are common ancestors for Gnetales and cycads.
(b)
Zosterophyllum are avascular land plants that evolved in the Silurian period.
(c)
Lycopods are the oldest extant vascular land plants.
(d)
Sphenopsids evolved from the group of plants to which Psilophyton belongs.
1. Two
2. Three
3. Four
4. One
Subtopic: A BRIEF ACCOUNT OF EVOLUTION |
Level 3: 35%-60%
Hints
Read the following statements and choose the correct option.
1. Both Statement A and Statement B are correct
2. Both Statement A and Statement B are incorrect
3. Only Statement A is correct
4. Only Statement B is correct
| Statement A: | Similarities in proteins and genes among diverse organisms indicates common ancestry. |
| Statement B: | Humans and chimpanzees also show biochemical similarities. |
1. Both Statement A and Statement B are correct
2. Both Statement A and Statement B are incorrect
3. Only Statement A is correct
4. Only Statement B is correct
Subtopic: Introduction to Human Evolution | Evolution of Homo Sapiens | Biochemical Evidences |
90%
Level 1: 80%+
Hints
How many options given in the box are not true for the Darwinian theory of evolution?
Directional variations, Saltation, Minor variations, Inheritance of ‘factors’, Heritable variations, Reproductive fitness
1. Four
2. Two
3. Three
4. Five
Directional variations, Saltation, Minor variations, Inheritance of ‘factors’, Heritable variations, Reproductive fitness
1. Four
2. Two
3. Three
4. Five
Subtopic: Sources of Variation: 2 |
61%
Level 2: 60%+
Please attempt this question first.
Hints
Please attempt this question first.
In Lederberg's replica plating experiment, colonies of antibiotic resistant bacteria were observed, which indicates
| 1. | Pre-existing advantageous mutations when selected will result in observation of new phenotypes |
| 2. | Exposure to antibiotics causes mutation that confer antibiotic resistance |
| 3. | Mutations are directional variations |
| 4. | All antibiotic resistant bacteria which exist today are result of artificial selection |
Subtopic: Hardy Weinberg Law |
61%
Level 2: 60%+
Please attempt this question first.
Hints
Dinosaurs dominated the World in which of the following geological era?
1. Coenozoic
2. Jurassic
3. Mesozoic
4. Devonion
1. Coenozoic
2. Jurassic
3. Mesozoic
4. Devonion
Subtopic: A BRIEF ACCOUNT OF EVOLUTION |
Level 4: Below 35%
NEET - 2013
Hints
The finch species of Galapagos Islands are grouped according to their food sources. Which of the following is not a finch food?
1. Carrion
2. Insects
3. Tree buds
4. Seeds
1. Carrion
2. Insects
3. Tree buds
4. Seeds
Subtopic: Concept of Organic Evolution: Evidence |
66%
Level 2: 60%+
NEET - 2013
Hints
| Assertion (A): | Big bang theory says that the universe is still expanding. |
| Reason (R): | The expansion of the universe caused the decrease in temperature. |
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are true, but (R) is not the correct explanation of (A). |
| 3. | (A) is true, but (R) is false. |
| 4. | (A) is false, but (R) is true. |
Subtopic: Cosmic Evolution |
55%
Level 3: 35%-60%
Hints
| Assertion (A): | According to Darwin, fitness means reproductive fitness. |
| Reason (R): | Those who are a better fit in the environment will leave more progenies. |
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are true, but (R) is not the correct explanation of (A). |
| 3. | (A) is true, but (R) is false. |
| 4. | (A) is false, but (R) is true. |
Subtopic: Darwin's Theory | Summary of Darwin's Theory | Modern Theory of Evolution |
88%
Level 1: 80%+
Hints
| Assertion (A): | The new forms of life have arisen at different times in the history of the earth. |
| Reason (R): | Studies showed that life forms varied over time and certain life forms are restricted to certain geological timespans. |
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are true, but (R) is not the correct explanation of (A). |
| 3. | (A) is true, but (R) is false. |
| 4. | (A) is false, but (R) is true. |
Subtopic: Concept of Organic Evolution: Evidence |
50%
Level 3: 35%-60%
Hints
| Assertion (A): | In convergent evolution, the same structure developed in animals along different directions due to adaptations to different needs. |
| Reason (R): | Homologous structures have similar anatomy but perform different functions. |
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are true, but (R) is not the correct explanation of (A). |
| 3. | (A) is true, but (R) is false. |
| 4. | (A) is false, but (R) is true. |
Subtopic: Concept of Organic Evolution: Evidence |
67%
Level 2: 60%+
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