Learn how adaptive radiation leads to the diversification of species from a common ancestor. Covers examples and mechanisms of rapid evolutionary change in response to environmental pressures.
Adaptive radiation is demonstrated by Darwin's finches, where species evolved from a common ancestor to adapt to different ecological niches.
Ref: NCERT Class 12 Biology Chapter 6: Evolution Adaptive Radiation and Biological Evolution
Adaptive radiation is not convergent evolution; it refers to the diversification of species from a common ancestor.
Ref: NCERT Class 12 Biology Chapter 6: Evolution Adaptive Radiation and Biological Evolution
Hardy-Weinberg equilibrium describes the stability of allele frequencies in the absence of evolutionary forces.
Ref: NCERT Class 12 Biology Chapter 6: Evolution Adaptive Radiation and Biological Evolution
Genetic drift has a greater impact on small populations, not large ones.
Ref: NCERT Class 12 Biology Chapter 6: Evolution Adaptive Radiation and Biological Evolution
Transitional fossils provide evidence of the evolutionary link between fish and amphibians.
Ref: NCERT Class 12 Biology Chapter 6: Evolution Adaptive Radiation and Biological Evolution
The universal genetic code in all living organisms supports the concept of common ancestry.
Ref: NCERT Class 12 Biology Chapter 6: Evolution Adaptive Radiation and Biological Evolution
Panspermia suggests that life came from outer space, not from non-living organic molecules on Earth.
Ref: NCERT Class 12 Biology Chapter 6: Evolution Adaptive Radiation and Biological Evolution
The Hardy-Weinberg Principle states that allele frequencies remain constant in a population unless disturbed by evolutionary forces.
Ref: NCERT Class 12 Biology Chapter 6: Evolution Adaptive Radiation and Biological Evolution
Mutations can be beneficial, harmful, or neutral depending on the environmental context and genetic impact.
Ref: NCERT Class 12 Biology Chapter 6: Evolution Adaptive Radiation and Biological Evolution
The Founder Effect describes how a small isolated population can give rise to a new species due to genetic drift.
Ref: NCERT Class 12 Biology Chapter 6: Evolution Adaptive Radiation and Biological Evolution
Parallel evolution occurs when species in different geographical areas evolve similar traits independently.
Ref: NCERT Class 12 Biology Chapter 6: Evolution Adaptive Radiation and Biological Evolution
Similarity in DNA sequences among diverse organisms supports the concept of common ancestry.
Ref: NCERT Class 12 Biology Chapter 6: Evolution Adaptive Radiation and Biological Evolution
