What are homologous structures? Give an | Class 10 Science Chapter Heredity and Evolution, Heredity and Evolution NCERT Solutions

Question:

What are homologous structures? Give an example. Is it necessary that homologous structures always have a common ancestor?

Answer:

Homologous structures are those which have common ancestors, similar basic structure, similar topographic relationships and have similar origin but perform different functions are homologous organs also known as divergent evolution.

Eg. Forelimbs of vertebrates like, cheetah, whale, bat. Yes, it is necessary that homologous structures always have common ancestors because if they have different ancestors then they are known as Analogous structure or convergent evolution.


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Welcome to the NCERT Solutions for Class 10 Science - Chapter . This page offers a step-by-step solution to the specific question from Excercise 0 , Question 32: What are homologous structures? Give an example. Is it necessary that homologous structures always h....