Question

Homologous structure are -

• A. Dissimilar in origin, similar in function
• B. Dissimilar in origin and function both
• C. Similar in origin and similar in function
• D. Similar in origin and dissimilar in function

Answer 1

The correct option is D

Similar in origin and dissimilar in function

The correct option is D.

Explanation of the correct option :

1. Structures that have a common basic structure but perform different functions are called homologous structures.
2. For example, the forelimbs of reptiles, amphibians, and mammals.
3. They have a common ancestor but are variously modified to carry out different activities.

Explanation of the incorrect option:

Option A:

1. Analogous organs have a different origin.
2. These look alike and perform the same functions. For example, the wings of birds and wings of insects

Option B:

These are not homologous structures.

Option C:

These are not homologous structures.

Final answer: Homologous structures are Similar in origin and dissimilar in function.