In which of the following fish, paired ovaries fuse to form a single ovary?

Correct option is C

Correct Answer: (c) Oryzias latipes
Explanation:
→ The medaka (O. latipes) has fused ovaries forming a single ovary, unlike most teleosts which possess paired ovaries.
→ Important model organism in reproductive biology.
Information Booster:
→ Used extensively in genetics and developmental studies.
→ Transparent embryos aid early developmental observation.
→ Demonstrates diverse reproductive anatomy among fishes.
Additional Information: Other species listed retain paired ovaries.