Question

Vertebral column is derived from which of the following structures?

• A. Notochord
• B. Dorsal nerve cord
• C. Ventral nerve cord
• D. Outgrowth of cranium

Answer 1

The correct option is A Notochord

• All chordates are characterised by primary features, like, the presence of a notochord, a dorsal hollow nerve cord, pharyngeal gill slits, and a post-anal tail. The notochord, later on, gives rise to a bony vertebral column in vertebrate animals. The vertebral column houses and protects the spinal cord.
• So, the correct answer is option B.