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Given below are two statements: one is labelled as Assertion and the other is labelled as Reason. (NEET 2022 Phase 1)
Assertion: All vertebrates are chordates, but all chordates are not vertebrates.
Reason: Notochord is replaced by a vertebral column in the adult vertebrates.
In the light of the above statements, choose the most appropriate answer from the options given below:
Assertion: All vertebrates are chordates, but all chordates are not vertebrates.
Reason: Notochord is replaced by a vertebral column in the adult vertebrates.
In the light of the above statements, choose the most appropriate answer from the options given below:
- a)Both Assertion and Reason are correct but Reason is not the correct explanation of Assertion.
- b)Assertion is correct but Reason is not correct
- c)Assertion is not correct but Reason is correct
- d)Both Assertion and Reason are correct and Reason is the correct explanation of Assertion.
Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
Given below are two statements: one is labelled as Assertion and the o...
Understanding the Assertion
The assertion states: "All vertebrates are chordates, but all chordates are not vertebrates."
- Vertebrates: These are animals that have a backbone or spinal column. This group includes mammals, birds, reptiles, amphibians, and fish.
- Chordates: This broader category includes all animals that possess a notochord at some stage of their development. This group encompasses not only vertebrates but also invertebrate chordates such as tunicates and lancelets.
Thus, the assertion is correct because while all vertebrates belong to the phylum Chordata, not all chordates develop into vertebrates.
Understanding the Reason
The reason given is: "Notochord is replaced by a vertebral column in the adult vertebrates."
- The notochord is a flexible rod-like structure that provides support in the embryonic stages of all chordates.
- In vertebrates, during development, the notochord is gradually replaced by the vertebral column (spine) in adults.
This reason accurately explains a key characteristic that differentiates vertebrates from other chordates.
Conclusion
- Since both the assertion and reason are true, and the reason provides a correct explanation for the assertion, the correct answer is option 'D':
Both Assertion and Reason are correct and Reason is the correct explanation of Assertion.
The assertion states: "All vertebrates are chordates, but all chordates are not vertebrates."
- Vertebrates: These are animals that have a backbone or spinal column. This group includes mammals, birds, reptiles, amphibians, and fish.
- Chordates: This broader category includes all animals that possess a notochord at some stage of their development. This group encompasses not only vertebrates but also invertebrate chordates such as tunicates and lancelets.
Thus, the assertion is correct because while all vertebrates belong to the phylum Chordata, not all chordates develop into vertebrates.
Understanding the Reason
The reason given is: "Notochord is replaced by a vertebral column in the adult vertebrates."
- The notochord is a flexible rod-like structure that provides support in the embryonic stages of all chordates.
- In vertebrates, during development, the notochord is gradually replaced by the vertebral column (spine) in adults.
This reason accurately explains a key characteristic that differentiates vertebrates from other chordates.
Conclusion
- Since both the assertion and reason are true, and the reason provides a correct explanation for the assertion, the correct answer is option 'D':
Both Assertion and Reason are correct and Reason is the correct explanation of Assertion.
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Given below are two statements: one is labelled as Assertion and the o...
All vertebrates are chordates because they possess a notochord at least at some time during their life. All chordates are not vertebrates because protochordates have notochord but lack a vertebral column. Therefore, A and R are true and R is the correct explanation of A.
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Given below are two statements: one is labelled as Assertion and the other is labelled as Reason. (NEET 2022 Phase 1)Assertion: All vertebrates are chordates, but all chordates are not vertebrates.Reason: Notochord is replaced by a vertebral column in the adult vertebrates.In the light of the above statements, choose the most appropriate answer from the options given below:a)Both Assertion and Reason are correct but Reason is not the correct explanation of Assertion.b)Assertion is correct but Reason is not correctc)Assertion is not correct but Reason is correctd)Both Assertion and Reason are correct and Reason is the correct explanation of Assertion.Correct answer is option 'D'. Can you explain this answer? for NEET 2026 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Given below are two statements: one is labelled as Assertion and the other is labelled as Reason. (NEET 2022 Phase 1)Assertion: All vertebrates are chordates, but all chordates are not vertebrates.Reason: Notochord is replaced by a vertebral column in the adult vertebrates.In the light of the above statements, choose the most appropriate answer from the options given below:a)Both Assertion and Reason are correct but Reason is not the correct explanation of Assertion.b)Assertion is correct but Reason is not correctc)Assertion is not correct but Reason is correctd)Both Assertion and Reason are correct and Reason is the correct explanation of Assertion.Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for NEET 2026 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Given below are two statements: one is labelled as Assertion and the other is labelled as Reason. (NEET 2022 Phase 1)Assertion: All vertebrates are chordates, but all chordates are not vertebrates.Reason: Notochord is replaced by a vertebral column in the adult vertebrates.In the light of the above statements, choose the most appropriate answer from the options given below:a)Both Assertion and Reason are correct but Reason is not the correct explanation of Assertion.b)Assertion is correct but Reason is not correctc)Assertion is not correct but Reason is correctd)Both Assertion and Reason are correct and Reason is the correct explanation of Assertion.Correct answer is option 'D'. Can you explain this answer?.
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