NEET : Multiple Choice questions: Chordata and Vertebrata

1. Consider the following fundamental features of Chordata and select the correct code

1. Dorsal nerve cord 

2. Notochord

3. Pharyngeal gill slit 

4. Dorsal heart

A. 1 2 and 3

B. 2 3 and 4

C. 1 3 and 4

D. 1 2 3 and 4

Answer: A Explanation 

2. Which of the following feature was first appeared in the Chordata.

A. Triploblastic condition

B. Closed circulatory system 

C. Post anal tail

D.Bilateral symmetry 

Answer: C Explanation

3. Consider the following statement and select the correct code:

1. In Non chordates , central nervous system  is ventral solid and double 

2.  In  chordates, Central nervous system is dorsal hollow and single.

A. Only 1

B. Only 2

C. Both 1 and 2

D. Neither 1 nor 2

Answer: C Explanation

4. Consider the following Diagram and Select the corresponding option with A and B 

           A                  B

A.  Gill slit           Notochord

B.  Notochord    Gill slit

C.  Nerve cord   Noto chord

D.  Notochord.   Nerve cord 

Answer: C

5. Which of the following group of Chordates are considered as Protochordates.

A. Urochordates and vertebrates 

B. Cephalochordates and Vertebrates 

C. Urochordates and Cephalochordates 

D. Urochordates, Cephalochordates and Vertebrates

Answer: C Explanation

6. Which of the following group do not  have Jaws.

A. Gnathostomata

B. Agnatha

C. Protochordates 

D. Urochordates

Answer : B Explanation

7.In chordates which of the following is not dorsally located.

A. Heart

B. Nerve cord 

C. Notochord 

D. Central nervous system 

Answer: A Explanation

8 . In  which of following group , Notochord is replaced by the vertebral column.

A. Protochordates

B. Urochordates

C. Cephalochordates

D. Gnathostomata

Answer: D Explanation

9.  Which of following statement is not correct.

A. In All chordates , notochord is replaced by vertebral column.

B. In all vertebrates, notochord is replaced by the vertebral column.

C. All chordates are not vertebrates.

D. All vertebrates are chordates.

Answer: A Explanation

10.   Which of following statement is not correct.

A. Protochordates are divided into  Urochordates and  cephalochordates.

B. Vertebrata is divided into Agnatha and Gnathostomata

C.Gnathostomata is further divided into  Pisces  and Tetrapods.

D. Agnatha is divided into Amphibian, Reptiles, Birds and Mammals.

Answer: D Explanation