Question:
A good example for recapitulation theory is/are
A good example for recapitulation theory is/are
Updated On: Jun 7, 2022
- canine teeth of dog
- placenta of mammals
- tadpole larva of frog
- embryonic membranes of reptiles
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The Correct Option is C
Solution and Explanation
It was Ernst Haeckel who proposed the biogenetic law or recapitulation theory. Haeckel?s law states that "ontogeny repeats phylogeny". Ontogeny is the life history of an organism while phylogeny is the evolutionary history of the race of that organism. In other words, an organism repeats its ancestral history during its embryonic development. In the development of the frog, a fish-like tailed larva (tadpole) is formed, which swims with the tail and respires through gills. This indicates that the frog has evolved from a fish-like ancestor.
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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.