CUET UG 2023 Biology Question Paper (31-May-2023) (Shift 2)

Question 1

Arrange the following steps of Polymerase Chain Reaction in correct sequence:(A) Denaturation of ds DNA(B) Extension of Primers(C) Amplification of desired DNA(D) Primer AnnealingChoose the correct answer from the options given below:

Accepted Answer

(c) A, D, B, C

Answer

(a) A, B, C, D

Answer

(b) D, C, A, B

Answer

(d) C, B, D, A

Question 2

Identify the correct sequence of steps in breeding crop plants for disease resistance:(A) Testing and release of new varieties(B) Hybridization of the selected parents(C) Screening germplasm for resistance source(D) Selection and evaluation of hybridsChoose the correct answer from the options given below:

Accepted Answer

(a) C → B → A → D

Answer

(b) C → A → B → D

Answer

(c) A → C → B → D

Answer

(d) A → B → C → D

Question 3

Match List - I with List - II:List - IList - II(A) Structural genes in eukaryotes(I) Polycistronic(B) The coding sequence that appears in mature RNA(II) Monocistronic(C) Structural genes in Prokaryotes(III) Intron (D) Sequences not present in processed RNA(IV) ExonsChoose the correct answer from the options given below:

Accepted Answer

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

Answer

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

Answer

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

Answer

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

Question 4

Identify the practices followed to avoid sexually transmitted infections:(A) Avoiding sex with unknown partners/multiple partners(B) Using condoms during coitus(C) Periodic abstinence(D) Insertion of copper-T in the uterusChoose the correct answer from the options given below:

Accepted Answer

(b) A and B only

Answer

(a) A and D only

Answer

(c) C and D only

Answer

(d) B and D only

Question 5

Match List - I with List - II:List - I (Use of transgenic animal)List - II (Work done)(A) Emphysema(I) Polio vaccine(B) Human alpha-lactalbumin(II) Rosie (C) Transgenic mice(III) Toxin sensitive transgenic animal(D) Chemical safety testing(IV) α-1-antitrypsinChoose the correct answer from the options given below:

Accepted Answer

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

Answer

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

Answer

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

Answer

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

CUET UG 2023 Biology Question Paper (31-May-2023) (Shift 2)

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List - I	List - II
(A) Structural genes in eukaryotes	(I) Polycistronic
(B) The coding sequence that appears in mature RNA	(II) Monocistronic
(C) Structural genes in Prokaryotes	(III) Intron
(D) Sequences not present in processed RNA	(IV) Exons

List - I (Use of transgenic animal)	List - II (Work done)
(A) Emphysema	(I) Polio vaccine
(B) Human alpha-lactalbumin	(II) Rosie
(C) Transgenic mice	(III) Toxin sensitive transgenic animal
(D) Chemical safety testing	(IV) α-1-antitrypsin