Question

Sol.(b) [Key Concept: Closest Living Primate Relative — Gorilla] Gorilla is among the closest living relatives of modern man. However, chimpanzees (not listed) are actually the closest relatives (~98.7% DNA similarity). Among the options given, gorillas share about 98.3% DNA identity with humans, making them closer than orangutans (~96.9%) or gibbons (~96%). Sinanthropus is an extinct fossil hominin (Peking Man).