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Q. No.In a large population which is in Hardy-Weinberg equilibrium, the percentage of the homozygous recessive genotype is 36%. What would be the frequency of heterozygotes?
1. 0.36
2. 0.6
3. 0.48
4. 0.16
Subtopic: Hardy Weinberg Law |
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Which of the following statement is incorrect with reference to origin of life?
| 1. | Origin of life is considered as a unique event in the history of universe |
| 2. | Origin of life has relation with the origin of earth |
| 3. | There has been a gradual evolution of life forms after origin of life |
| 4. | Origin of life occurred simultaneously in water as well as in terrestrial conditions |
Subtopic: Cosmic Evolution | Examples of Chemical Evolution |
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Level 1: 80%+
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| Assertion(A): | Evolution is not occurring at all at present. |
| Reason(R): | Evolution takes a very short time. |
| 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. | Both (A) and (R) are false. |
Subtopic: Other Theories of Origin of Life | A BRIEF ACCOUNT OF EVOLUTION |
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| Assertion(A): | Evolution is not a directed process in the sense of determination. |
| Reason(R): | It is stochastic process based on chance events in nature and chance mutation in the organisms. |
| 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. | Both (A) and (R) are false. |
Subtopic: Theory of Evolution & Lamarckism | Modern Theory of Evolution | Natural Selection | Genetic Basis of Adaptation |
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Level 1: 80%+
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| Assertion(A): | Continental drift caused survival of pouched mammals of Australia. |
| Reason(R): | It was due to lack of competition from any other mammal. |
| 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. | Both (A) and (R) are false. |
Subtopic: Definition & Types of Evolution | Concept of Speciation |
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| Assertion (A): | In polluted environments, melanic moths were more selected by nature. |
| Reason (R): | Melanic moths were able to camouflage themselves during industrialization. |
| 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 Isolation | Concept of Speciation | Genetic Basis of Adaptation |
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| Assertion (A): | As per Darwin, over many generations, survivors will leave more progenies. |
| Reason (R): | Survivors have variations that make resource utilization better for them. |
| 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: Theory of Evolution & Lamarckism | Darwin's Theory | Summary of Darwin's Theory | Modern Theory of Evolution |
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| Assertion (A): | Pouched mammals of Australia survived after continental drift. |
| Reason (R): | There was a lack of competition from any other placental mammals. |
| 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: A BRIEF ACCOUNT OF EVOLUTION |
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Which of the following is not true for Homo erectus?
| 1. | Fossils discovered in Java |
| 2. | Lived about 1.5 mya |
| 3. | Had a large brain around 900cc |
| 4. | Probably, did not eat meat |
Subtopic: Introduction to Human Evolution | Evolution of Homo Sapiens |
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The frequencies of dominant and recessive alleles of a gene in a population are 0.7 and 0.3 respectively. The expected frequency for heterozygotes in the population is likely to be:
| 1. | 42% | 2. | 49% |
| 3. | 21% | 4. | 9% |
Subtopic: Hardy Weinberg Law |
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