Which body part represents the notochord in vertebrates? a. backbone b. limbs c. head d. pharynx e. jaw

Answer : The correct answer is -

A. backbone.

Notochord can be described as a rodlike, flexible structure, composed of mesoderm derived cells. It is considered as the fundamental structural element in chordates and of the early embryo of vertebrates as it plays a organizational role in the development of nervous.

In later development of vertebrates, notochord becomes a part of the vertebral column.

In other words, it gets replaced during embryonic development of embryo by backbone in higher chordates or vertebrae of the vertebral column.

Thus, backbone is the right answer.

a notochord is definitely the backbone. it appears as a tiny flexible rod made from mesoderm cells. which is one third of the layer of embryos.

c.) polymerase chain reaction

- "unlike the original dna fingerprinting method, dna profiling does not use restriction enzymes to cut the dna. instead it uses the polymerase chain reaction (pcr)? to produce many copies of specific str sequences. pcr is an automated procedure that generates lots of copies of a specific sequence of dna."

your answer is true

i am 100% sure

explanation: