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1
JEE Main 2023 (Online) 10th April Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

The one that does not stabilize 2$$^\circ$$ and 3$$^\circ$$ structures of proteins is

A
$$-$$O $$-$$O $$-$$linkage
B
$$-$$S $$-$$S $$-$$linkage
C
van der Waals forces
D
H-bonding
2
JEE Main 2023 (Online) 8th April Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Match List I with List II

LIST I
Natural amino acid		 LIST II
One letter code
A. Glutamic acid I. Q
B. Glutamine II. W
C. Tyrosine III. E
D. Tryptophan IV. Y

Choose the correct answer from the options given below:

A
A-III, B-IV, C-I, D-II
B
A-IV, B-III, C-I, D-II
C
A-II, B-I, C-IV, D-III
D
A-III, B-I, C-IV, D-II
3
JEE Main 2023 (Online) 8th April Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Sulphur (S) containing amino acids from the following are:

(a) isoleucine (b) cysteine (c) lysine (d) methionine (e) glutamic acid

A
b, d
B
a, d
C
b, c, e
D
a, b, c
4
JEE Main 2023 (Online) 6th April Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Match List I with List II

LIST I
Natural Amino Acid		 LIST II
One Letter Code
A. Arginine I. D
B. Aspartic acid II. N
C. Asparagine III. A
D. Alanine IV. R

Choose the correct answer from the options given below:

A
(A) - IV, (B) - I, (C) - III, (D) - II
B
(A) - III, (B) - I, (C) - II, (D) - IV
C
(A) - IV, (B) - I, (C) - II, (D) - III
D
(A) - I, (B) - III, (C) - IV, (D) - II
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