NEET Exam Model Paper 14

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Question : 153 of 180

Marks: +1, -0

Which one of the following statements is totally wrong about the occurrence of notochord while the other three are correct ?

It is present throughout life in Amphioxus
It is present only in Larval Tail of Ascidians
It is absent throughout the life in humans from the very beginning
It is replaced by a vertebral column in Adult Frog

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