CUET 2026 Biology May 25 Shift 2 Question Paper- Download Answer Key and Solution PDF

CUET 2026 May 25 Shift 2 Biology Question Paper is available for download here. NTA is conducting the CUET 2026 exam from 11th May to 31st May.

CUET 2026 Biology exam consists of 50 questions for 250 marks to be attempted in 60 minutes.
As per the marking scheme, 5 marks are awarded for each correct answer, and 1 mark is deducted for incorrect answer.

Candidates can download CUET 2026 May 25 Shift 2 Biology Question Paper with Answer Key and Solution PDF from links provided below.

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CUET 2026 Biology May 25 Shift 2 Question Paper with Solution PDF

CUET May 25 Shift 2 Biology Question Paper 2026	Download PDF	Check Solutions

Question 1:

The growth curve observed in a population growing under limited resources is:

(A) J-shaped curve
(B) S-shaped curve
(C) Zig-zag curve
(D) Bell-shaped curve

Detailed Solution

Question 2:

Assertion (A): Viroids are infectious RNA particles without a protein coat.
Reason (R): Viroids mainly infect plants and cause diseases like potato spindle tuber disease.

(A) Both A and R are true and R is the correct explanation of A
(B) Both A and R are true but R is not the correct explanation of A
(C) A is true but R is false
(D) A is false but R is true

Detailed Solution

Question 3:

Match the following:

List-I		List-II
(A)	Darwin	(I)	Theory of Natural Selection
(B)	H.M.S. Beagle	(II)	Voyage related to evolution studies
(C)	Mimicry	(III)	Protective resemblance
(D)	Pathogen	(IV)	Disease causing organism

Choose the correct answer from the options given below:

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

Detailed Solution

Question 4:

DNA ligase is mainly used in biotechnology because it:

(A) Cuts DNA at specific sites
(B) Joins DNA fragments together
(C) Synthesizes RNA molecules
(D) Breaks hydrogen bonds

Detailed Solution

Question 5:

In gel electrophoresis, DNA fragments are separated mainly on the basis of:

(A) Shape
(B) Density
(C) Charge only
(D) Size

Detailed Solution

Question 6:

During oogenesis, the primary oocyte remains arrested in:

(A) Metaphase-II
(B) Prophase-I
(C) Anaphase-I
(D) Telophase-II

Detailed Solution

Question 7:

Match the following phases of menstrual cycle with their characteristic events:

List-I		List-II
(A)	Menstrual phase	(I)	Ovulation occurs
(B)	Follicular phase	(II)	Breakdown of endometrium
(C)	Ovulatory phase	(III)	Corpus luteum formation
(D)	Luteal phase	(IV)	Follicular growth

Choose the correct answer from the options given below:

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

Detailed Solution

Question 8:

The female reproductive part of a flower is:

(A) Stamen
(B) Anther
(C) Pistil
(D) Filament

Detailed Solution

Question 9:

Assertion (A): In RNA, thymine is replaced by uracil.
Reason (R): Uracil pairs with adenine during base pairing.

(A) Both A and R are true and R is the correct explanation of A
(B) Both A and R are true but R is not the correct explanation of A
(C) A is true but R is false
(D) A is false but R is true

Detailed Solution

Question 10:

Which of the following statements regarding gene therapy is correct?

(A) It is used only in plants
(B) It involves replacement or correction of defective genes
(C) It destroys all genes inside the body
(D) It is a method of protein digestion

Detailed Solution

CUET UG 2026 Exam Pattern

Parameter	Details
Exam Name	Common University Entrance Test (CUET UG) 2026
Conducting Body	National Testing Agency (NTA)
Exam Mode	Computer-Based Test (CBT)
Exam Duration	60 minutes per test
Total Sections	3 (Languages, Domain Subjects, General Test)
Question Type	Multiple Choice Questions (MCQs)
Questions per Test	50 questions (all compulsory)
Marking Scheme	+5 for correct, -1 for incorrect
Maximum Marks	250 marks per test
Maximum Subject Choices	5 subjects in total
Syllabus Base	Class 12 NCERT (mainly for Domain Subjects)

CUET UG 2026 Paper Analysis

CUET Questions

1.
Match List - I with List - II. P. Polyembryony _ _ _ _ (i) Apple
Q. Parthenocarpy _ _ _ _ (ii) Female gametophyte
R. False Fruit _ _ _ _ (iii) Orange
S. Embryo Sac _ _ _ _ (iv) Banana

P-(iii), Q-(i), R-(ii), S-(iv)
P-(iii), Q-(iv), R-(i), S-(ii)
P-(i), Q-(iv), R-(iii), S-(ii)
P-(iii), Q-(iv), R-(ii), S-(i)

View Solution

2.
Match List - I with List - II (Contraception).
List - I List - II
P. Lippes loop (i) Barrier
Q. Vaults (ii) Hormone releasing device
R. Periodic abstinence (iii) Non-medicated IUDs
S. Progestasert (iv) Natural method

List - I	List - II
P. Lippes loop	(i) Barrier
Q. Vaults	(ii) Hormone releasing device
R. Periodic abstinence	(iii) Non-medicated IUDs
S. Progestasert	(iv) Natural method

P-(i), Q-(iii), R-(iv), S-(ii)
P-(iii), Q-(ii), R-(iv), S-(i)
P-(iii), Q-(i), R-(iv), S-(ii)
P-(iii), Q-(i), R-(ii), S-(iv)

View Solution

3.
Arrange the following stages of development of a dicot embryo in the order of their occurrence: (i) Formation of heart shaped embryo
(ii) Formation of typical dicot embryo
(iii) Formation of zygote
(iv) Formation of globular embryo

(i), (ii), (iii), (iv)
(iii), (iv), (i), (ii)
(iii), (i), (ii), (iv)
(iv), (i), (ii), (iii)

View Solution

4.
Which of the following is not a Mendelian Disorder?

Haemophilia
Sickle-cell anaemia
Down's Syndrome
Phenylketonuria

View Solution

5.
Arrange Griffith’s experiment in correct sequence. (i) S strain injected → mice died
(ii) Heat-killed S strain → mice lived
(iii) R strain injected → mice lived
(iv) Heat-killed S + R strain → mice died

(i), (ii), (iii), (iv)
(ii), (i), (iii), (iv)
(ii), (iii), (iv), (i)
(i), (iii), (ii), (iv)

View Solution

6.
In DNA N-glycosidic linkage is present between:

Pentose sugar and phosphate group
Nitrogenous base and pentose sugar
Two nitrogenous bases
Two pentose sugars

View Solution

CUET 2026 Biology May 25 Shift 2 Question Paper- Download Answer Key and Solution PDF

CUET 2026 Biology May 25 Shift 2 Question Paper with Solution PDF

CUET UG 2026 Exam Pattern

CUET UG 2026 Paper Analysis

CUET Questions

1.
Match List - I with List - II. P. Polyembryony _ _ _ _ (i) Apple
Q. Parthenocarpy _ _ _ _ (ii) Female gametophyte
R. False Fruit _ _ _ _ (iii) Orange
S. Embryo Sac _ _ _ _ (iv) Banana

2.
Match List - I with List - II (Contraception).
List - I List - II
P. Lippes loop (i) Barrier
Q. Vaults (ii) Hormone releasing device
R. Periodic abstinence (iii) Non-medicated IUDs
S. Progestasert (iv) Natural method

3.
Arrange the following stages of development of a dicot embryo in the order of their occurrence: (i) Formation of heart shaped embryo
(ii) Formation of typical dicot embryo
(iii) Formation of zygote
(iv) Formation of globular embryo

4.
Which of the following is not a Mendelian Disorder?

5.
Arrange Griffith’s experiment in correct sequence. (i) S strain injected → mice died
(ii) Heat-killed S strain → mice lived
(iii) R strain injected → mice lived
(iv) Heat-killed S + R strain → mice died

6.
In DNA N-glycosidic linkage is present between:

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CUET 2026 Biology May 25 Shift 2 Question Paper with Solution PDF

CUET UG 2026 Exam Pattern

CUET UG 2026 Paper Analysis

CUET Questions

1.Match List - I with List - II. P. Polyembryony _ _ _ _ (i) Apple Q. Parthenocarpy _ _ _ _ (ii) Female gametophyte R. False Fruit _ _ _ _ (iii) Orange S. Embryo Sac _ _ _ _ (iv) Banana

2.Match List - I with List - II (Contraception). List - IList - IIP. Lippes loop(i) BarrierQ. Vaults(ii) Hormone releasing deviceR. Periodic abstinence(iii) Non-medicated IUDsS. Progestasert(iv) Natural method

3.Arrange the following stages of development of a dicot embryo in the order of their occurrence: (i) Formation of heart shaped embryo (ii) Formation of typical dicot embryo (iii) Formation of zygote (iv) Formation of globular embryo

4.Which of the following is not a Mendelian Disorder?

5.Arrange Griffith’s experiment in correct sequence. (i) S strain injected → mice died (ii) Heat-killed S strain → mice lived (iii) R strain injected → mice lived (iv) Heat-killed S + R strain → mice died

6.In DNA N-glycosidic linkage is present between:

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1.
Match List - I with List - II. P. Polyembryony _ _ _ _ (i) Apple
Q. Parthenocarpy _ _ _ _ (ii) Female gametophyte
R. False Fruit _ _ _ _ (iii) Orange
S. Embryo Sac _ _ _ _ (iv) Banana

2.
Match List - I with List - II (Contraception).
List - I List - II
P. Lippes loop (i) Barrier
Q. Vaults (ii) Hormone releasing device
R. Periodic abstinence (iii) Non-medicated IUDs
S. Progestasert (iv) Natural method

3.
Arrange the following stages of development of a dicot embryo in the order of their occurrence: (i) Formation of heart shaped embryo
(ii) Formation of typical dicot embryo
(iii) Formation of zygote
(iv) Formation of globular embryo

4.
Which of the following is not a Mendelian Disorder?

5.
Arrange Griffith’s experiment in correct sequence. (i) S strain injected → mice died
(ii) Heat-killed S strain → mice lived
(iii) R strain injected → mice lived
(iv) Heat-killed S + R strain → mice died

6.
In DNA N-glycosidic linkage is present between: