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Which one of the following statements is totally wrong about the occurrence of notochord, while the other three are correct?
Options
(a) It is present only in larval tail in Ascidians
(b) It is replaced by a vertebral column in adult frog
(c) It is absent throughout life in humans from the very beginning
(d) It is present throughout life in Amphioxus
Correct Answer:
It is absent throughout life in humans from the very beginning
Explanation:
Notochord is a flexible rod like structure that forms the main support of the body in the lowest chordates. It is not absent in humans through out their life. Notochord is present in embryonic stage and get changed or replaced by vertebral column in the adult
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Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A few normal seedling of tomato were kept in a dark room. After few days
- Which statement is wrong for viruses
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- Non elastic but flexible tissue which serves to attach the muscles with the bone is
- The following graph depicts changes in two populations (A and B) of herbivores
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Subject: Biology (4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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