Question:
Which of the following are the two key concepts of Darwinian theory of evolution?
Which of the following are the two key concepts of Darwinian theory of evolution?
Updated On: Jul 7, 2022
- Genetic drift and mutation
- Adaptive radiation and homology
- Mutation and natural selection
- Branching descent and natural selection
Hide Solution
Verified By Collegedunia
The Correct Option is D
Solution and Explanation
According to Darwin's theory of evolution, nature selects the fittest. Fitness is based on characteristics which are inherited. Therefore, there must be a genetic basis for getting selected and to evolve. Some organisms are better adapted to survive in an otherwise hostile environment. Adaptative ability is inherited. Fitness is the end result of the ability to adapt and get selected by nature. Therefore, branching descent (inheritance) and natural selection are the two key concepts of Darwin's theory of evolution
Was this answer helpful?
0
0
Top Questions on evolution
- Which of the following is an example of homologous structures that provide evidence for evolution?
- MHT CET - 2025
- Biology
- evolution
- What is the correct order (old to recent) of periods in Paleozoic era?
- NEET (UG) - 2024
- Biology
- evolution
- Match List I with List II :Choose the correct answer from the options given below :
List - I List – II A. Living Fossil i. Elongated canine teeth B. Connecting Link ii. Vermiform appendix C. Vestigial Organ iii. Echidna D. Atavism iv. Latimeria - NEET (UG) - 2024
- Biology
- evolution
- Which evolutionary phenomenon is depicted by the sketch given in figure?
- NEET (UG) - 2024
- Biology
- evolution
- Change in the frequency of genes in small populations is called:
View More Questions
Concepts Used:
Evolution
Evolution is a process that occurs in changes in the genetic content of a population over time. Evolutionary change is generally classified into two: microevolution and macroevolution. The process of changes in allele frequencies in a population over time is a microevolutionary process. Three main mechanisms that cause allele frequency change are natural selection, genetic drift, and gene flow. On the other hand, macroevolution refers to change at or above the level of the species.