NEET UG 2025 · Zoology · Question 142

NEET 2025 Zoology, question 142

Question 142 of the NEET 2025 paper (code 45) is a Zoology question from Animal Kingdom. Its idea, Fundamental Chordate Features, was asked 6 times, in 2020, 2022, 2023, 2024, 2025 and 2026, across NEET 2017–2026. The NTA final answer key gives option 1.

Updated 2026-10-08

Q142 · Zoology

Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : All vertebrates are chordates but all chordates are not vertebrate. Reason (R) : The members of subphylum vertebrata possess notochord during the embryonic period, the notochord is replaced by a cartilaginous or bony vertebral column in adults. In the light of the above statements, choose the correct answer from the options given below :

1 Both A and R are true and R is the correct explanation of A Official answer 2 Both A and R are true but R is not the correct explanation of A 3 A is true but R is false 4 A is false but R is true

Official answer: option 1 · NTA final answer key

Same idea

Fundamental Chordate Features, in other papers

NEET asked this idea 6 times, in 2020, 2022, 2023, 2024, 2025 and 2026. The other 5 questions below.

2026 Q 132 Which of the following is not a characteristic of chordates? One-line MCQ \cdot Easy 2024 Q 191 The following are the statements about non-chordates: A. Pharynx is perforated by gill slits. B. Notochord is absent. C. Central nervous\dots Other \cdot Easy 2023 Q 189 Select the correct statements with reference to chordates. A. Presence of a mid-dorsal, solid and double nerve cord. B. Presence of closed\dots Other \cdot Medium 2022 Q 182 Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : All vertebrates\dots Assertion-reason \cdot Easy 2020 Q 26 Which of the following statements are true for the phylum-Chordata ? (a) In Urochordata notochord extends from head to tail and it is\dots Other \cdot Medium

Fundamental Chordate Features: every question and how it was framed

The chapter

Animal Kingdom in ten years of NEET

34 questions from 2017–2026, asked in 10 of 10 papers, about 3.3 a paper. Chordate Classes alone had 16.

Chapter analysis Study this chapter Practise this chapter

Fundamental Chordate Features, in other papers

Animal Kingdom in ten years of NEET

Animal Kingdom: questions per paper