Question

In Amphioxus notochord is present only in

• A. In embryo
• B. In adult
• C. Both A and B
• D. None of the above

Answer 1

The correct option is C Both A and B

Amphioxus are fish-like marine chordates. The notochord is a flexible rod-shaped body found in embryos of all chordates. It is composed of cells derived from the mesoderm and defines the primitive axis of the embryo. In case of Amphioxus, it is retained in the adults.

So, the correct answer is option C.