Question

When two forms undergo evolution independently leading to the production of analogous structure, which does not indicate any relationship then the type of evolution is said to be

• A. Parallel evolution
• B. Convergent evolution
• C. Progressive evolution
• D. Retrogressive evolution

Answer 1

The correct option is A Parallel evolution

Parallel evolution is the evolution of geographically separated groups in such a way that they show morphological resemblances. A notable example is the similarity shown by the marsupial mammals of Australia to the placental mammals elsewhere. Thus, option A is correct.
In evolutionary biology, convergent evolution is the process whereby organisms not closely related, independently evolve similar traits as a result of having to adapt to similar environments or ecological niches.
Progressive evolution or autogenesis, is the hypothesis that life has an innate tendency to evolve in a unilinear fashion due to some internal or external "driving force.
Retrogressive evolution is the process in which complex forms of organisms develop towards the simpler structural and physiological organizations.