- 1(current)
Q. No.Sickle cell anaemia has not been eliminated from African population as
1. It is controlled by dominant genes
2. It is controlled by recessive genes
3. It is not a fatal disease
4. It provides immunity against malaria
Subtopic: Genetic Basis of Adaptation |
71%
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The set of all genes, or genetic information, in a unit of evolution is called the :
1. genotype
2. polymorphism
3. multiple allelism
4. gene pool
Subtopic: Genetic Basis of Adaptation |
87%
From NCERT
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Viviparity is considered to be more evolved because:
| 1. | the young ones are left on their own |
| 2. | the young ones are protected by a thick shell |
| 3. | the young ones are protected inside the mother's body and are looked after they are born leading to more chances of survival |
| 4. | the embryo takes a long time to develop |
Subtopic: Other Theories of Origin of Life | Concept of Speciation | Genetic Basis of Adaptation |
93%
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