Question

What is the fate of notochord in higher chordates?
A. The notochord is replaced by vertebral column partly or fully
B. The notochord is converted to vertebral column partly or fully
C. The notochord is converted to nerves
D. None of the above

Answer 1

Hint: The notochord is an adjustable rod formed of a substance identical to cartilage. If a lineage has a notochord at any arena of its life cycle, it is by explanation, a chordate.

Complete Answer:
The notochord is the descriptive configuration of the chordates and has vital roles in vertebrate improvement. It administers as a reference of midline indications that structure enveloping tissues and as an important skeletal aspect of the expanding embryo.

Option A: Notochord is accompanying in the embryos and performs as a site for the vertebra column to mould about. It is ultimately fully consumed by the spine. In the spine, it shapes a prominent part of the intervertebral disc. In other words, the notochord is renovated by the vertebral column partially or completely. This is the correct answer.

Hence option 'A' is the correct answer.

Note: The notochord fiddles a crucial structural role. As a tissue, it is most nearly pertained to cartilage and is inclined to exemplify a fundamental form of cartilage. Accordingly, the notochord aids as the axial skeleton of the embryo until other components, such as the vertebrae, structure.