NEETZoologyEvolution
Structure Example A. Forelimb 1. Human eye and octopus eye B. Hindlimb 2. Human arm and bat wing C. Vertebrate Eye 3. Gill slits in fish and pharyngeal pouches in humans D. Pharyngeal Slits 4. Horse leg and whale flipper
Options
- AA-1; B-2; C-3; D-4
- BA-2; B-4; C-1; D-3
- CA-4; B-3; C-2; D-1
- DA-3; B-1; C-4; D-2
Correct answer
B. A-2; B-4; C-1; D-3
Step-by-step solution
Forelimbs such as the human arm and bat wing are homologous structures derived from a common ancestor. Hindlimbs like the horse leg and whale flipper are also homologous structures. Vertebrate Eyes in humans and octopuses are analogous, not homologous. Pharyngeal Slits are evident as gill slits in fish and pharyngeal pouches in humans, indicating a common ancestry.