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NEET 2020 Exam Paper (180 Q) - Mock Test

Medium 180 Questions 179 min 180 marks

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179 min · 180 marks · Full test mode with leaderboard

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Question No: 26Difficulty: mediumMarks: 1mcq

Which of the following statements are true for the phylum-Chordata? (a) In Urochordata notochord extends from head to tail and it is present throughout their life. (b) In Vertebrata notochord is present during the embryonic period only. (c) Central nervous system is dorsal and hollow. (d) Chordata is divided into 3 subphyla: Hemichordata, Tunicata and Cephalochordata.

Question No: 27Difficulty: mediumMarks: 1mcq

Match the organism with its use in biotechnology. Column - I Column - II (a) Bacillus thuringiensis (i) Cloning vector (b) Thermus aquaticus (ii) Construction of first rDNA molecule (c) Agrobacterium tumefaciens (iii) DNA polymerase (d) Salmonella typhimurium (iv) Cry proteins

Column - I	Column - II
(a) Bacillus thuringiensis	(i) Cloning vector
(b) Thermus aquaticus	(ii) Construction of first rDNA molecule
(c) Agrobacterium tumefaciens	(iii) DNA polymerase
(d) Salmonella typhimurium	(iv) Cry proteins

Question No: 28Difficulty: mediumMarks: 1mcq

Match the following concerning essential elements and their functions in plants: Column - I Column - II (a) Iron (i) Photolysis of water (b) Zinc (ii) Pollen germination (c) Boron (iii) Required for chlorophyll biosynthesis (d) Manganese (iv) IAA biosynthesis

Column - I	Column - II
(a) Iron	(i) Photolysis of water
(b) Zinc	(ii) Pollen germination
(c) Boron	(iii) Required for chlorophyll biosynthesis
(d) Manganese	(iv) IAA biosynthesis

Question No: 29Difficulty: mediumMarks: 1mcq

Identify the incorrect statement.

Question No: 30Difficulty: mediumMarks: 1mcq

Match the following: Column - I Column - II (a) Inhibitor of catalytic activity (i) Ricin (b) Possess peptide bonds (ii) Malonate (c) Cell wall material in fungi (iii) Chitin (d) Secondary metabolite (iv) Collagen

Column - I	Column - II
(a) Inhibitor of catalytic activity	(i) Ricin
(b) Possess peptide bonds	(ii) Malonate
(c) Cell wall material in fungi	(iii) Chitin
(d) Secondary metabolite	(iv) Collagen

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