1
JEE Main 2023 (Online) 29th January Evening Shift
+4
-1
Following tetrapeptide can be represented as

(F, L, D, Y, I, Q, P are one letter codes for amino acids)

A
YQLF
B
FIQY
C
PLDY
D
FLDY
2
JEE Main 2023 (Online) 29th January Morning Shift
+4
-1

Number of cyclic tripeptides formed with 2 amino acids A and B is :

A
2
B
3
C
5
D
4
3
JEE Main 2023 (Online) 25th January Morning Shift
+4
-1

Match items of Row I with those of Row II.

Row I :

Row II :

(i) $$\alpha$$-$$\mathrm{D}$$-$$(-)$$-$$\mathrm{Fructofuranose}$$

(ii) $$\beta$$-D-$$(-)$$-Fructofuranose

(iii) $$\alpha$$-D-$$(-)$$ Glucopyranose

(iv) $$\beta$$-D-$$(-)$$-Glucopyranose

Correct match is

A
A $$\to$$ iii, B $$\to$$ iv, C $$\to$$ i, D $$\to$$ ii
B
A $$\to$$ iv, B $$\to$$ iii, C $$\to$$ i, D $$\to$$ ii
C
A $$\to$$ i, B $$\to$$ ii, C $$\to$$ iii, D $$\to$$ iv
D
A $$\to$$ iii, B $$\to$$ iv, C $$\to$$ ii, D $$\to$$ i
4
JEE Main 2022 (Online) 29th July Evening Shift
+4
-1

Given below are two statements. One is labelled as Assertion A and the other is labelled as Reason R.

Assertion A: Amylose is insoluble in water.

Reason R: Amylose is a long linear molecule with more than 200 glucose units.

In the light of the above statements, choose the correct answer from the options given below.

A
$$\mathbf{A}$$ Both $$\mathbf{A}$$ and $$\mathbf{R}$$ are correct and $$\mathbf{R}$$ is the correct explanation of $$\mathbf{A}$$.
B
Both $$\mathbf{A}$$ and $$\mathbf{R}$$ are correct but $$\mathbf{R}$$ is NOT the correct explanation of $$\mathbf{A}$$.
C
$$\mathbf{A}$$ is correct but $$\mathbf{R}$$ is not correct
D
$$\mathbf{A}$$ is not correct but $$\mathbf{R}$$ is correct.
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