CUET 2026 Biology May 19 Shift 1 Question Paper- Download Answer Key and Solution PDF

CUET 2026 May 19 Shift 1 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 19 Shift 1 Biology Question Paper with Answer Key and Solution PDF from links provided below.

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CUET 2026 Biology May 19 Shift 1 Question Paper with Solution PDF

CUET May 19 Shift 1 Biology Question Paper 2026	Download PDF	Check Solutions

Question 1:

In flowering plants, the pollen grain at the time of shedding from the anther is generally:

(A) Three-celled with one vegetative cell and two male gametes
(B) Two-celled with one vegetative cell and one generative cell
(C) Four-celled with one tube nucleus and three male gametes
(D) Uninucleate and non-vacuolated

View Solution

Question 2:

Arrange the following wall layers of microsporangium from outermost to innermost:

I. Tapetum
II. Middle layers
III. Epidermis
IV. Endothecium

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

View Solution

Question 3:

Which of the following events occurs during spermiogenesis but not during spermatogenesis?

(A) Meiotic division of spermatocytes
(B) Formation of haploid cells
(C) Transformation of spermatids into spermatozoa
(D) Mitotic multiplication of spermatogonia

View Solution

Question 4:

Assertion (A): Filiform apparatus is important for pollen tube guidance.

Reason (R): Synergids secrete chemotropic substances that attract the pollen tube.

(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

View Solution

Question 5:

Select the incorrect statement regarding meiosis in flowering plants.

(A) Microspore mother cell undergoes meiosis to produce tetrads
(B) Megaspore mother cell produces four megaspores after meiosis
(C) All four megaspores usually remain functional
(D) Meiosis reduces chromosome number to half

View Solution

Question 6:

During HIV infection, which sequence correctly represents the events inside host cells?

(A) Reverse transcription \(\rightarrow\) RNA synthesis \(\rightarrow\) Integration
(B) Integration \(\rightarrow\) Reverse transcription \(\rightarrow\) Viral protein synthesis
(C) Reverse transcription \(\rightarrow\) Integration into host DNA \(\rightarrow\) Viral replication
(D) Viral replication \(\rightarrow\) Integration \(\rightarrow\) Reverse transcription

View Solution

Question 7:

Which statement correctly distinguishes VNTR from coding DNA sequences?

(A) VNTRs code for essential enzymes
(B) VNTRs show high polymorphism among individuals
(C) VNTRs are present only in prokaryotes
(D) VNTRs undergo translation

View Solution

Question 8:

A pollen grain with 120 chromosomes undergoes normal development. What will be the chromosome number in each male gamete formed later?

(A) 120
(B) 240
(C) 60
(D) 30

View Solution

Question 9:

Which of the following is correctly matched?

(A) Tapetum --- Mechanical support
(B) Endothecium --- Pollen nourishment
(C) Synergids --- Filiform apparatus
(D) Antipodals --- Male gamete production

View Solution

Question 10:

Select the correct sequence in gene expression in eukaryotes.

(A) DNA \(\rightarrow\) mRNA \(\rightarrow\) hnRNA \(\rightarrow\) Protein
(B) DNA \(\rightarrow\) hnRNA \(\rightarrow\) mRNA \(\rightarrow\) Protein
(C) hnRNA \(\rightarrow\) DNA \(\rightarrow\) mRNA \(\rightarrow\) Protein
(D) DNA \(\rightarrow\) Protein \(\rightarrow\) mRNA

View 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 the structural genes of the Lac Operon in Column I with their functions in Column II.
Column I Column II
(A) lacZ (I) Permease
(B) lacY (II) Transacetylase
(C) lacA (III) \(\beta\)-galactosidase
Choose the correct answer from the options given below:

Column I	Column II
(A)	lacZ	(I)	Permease
(B)	lacY	(II)	Transacetylase
(C)	lacA	(III)	\(\beta\)-galactosidase

A-I, B-II, C-III
A-III, B-I, C-II
A-II, B-III, C-I
A-III, B-II, C-I

View Solution

3.
Select correct statements regarding menstrual cycle in human female: (i) First menstruation begins at puberty and is called menopause.
(ii) Ovulation occurs around day 14 when progesterone is maximum.
(iii) In absence of fertilisation, corpus luteum degenerates causing menstruation.
(iv) Menstrual cycle ceases around 50 years of age.

(i) and (ii) only
(ii) and (iv) only
(i) and (iii) only
(iii) and (iv) only

View Solution

4.
Match List - I with List - II. Choose the correct answer from the options given below:
List - I List - II
P. Ribosome (i) Replication
Q. Histone (ii) Transcription
R. DNA polymerase (iii) Translation
S. RNA polymerase (iv) Nucleosome

List - I	List - II
P. Ribosome	(i) Replication
Q. Histone	(ii) Transcription
R. DNA polymerase	(iii) Translation
S. RNA polymerase	(iv) Nucleosome

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

View Solution

5.
Arrange the following trophic levels in the correct sequence of a food chain starting from producers.
• Secondary Consumer
• Producer
• Primary Consumer
• Tertiary Consumer Choose the correct answer from the options given below:

2 \(\rightarrow\) 3 \(\rightarrow\) 1 \(\rightarrow\) 4
1 \(\rightarrow\) 2 \(\rightarrow\) 3 \(\rightarrow\) 4
2 \(\rightarrow\) 1 \(\rightarrow\) 3 \(\rightarrow\) 4
3 \(\rightarrow\) 2 \(\rightarrow\) 1 \(\rightarrow\) 4

View Solution

6.
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

CUET 2026 Biology May 19 Shift 1 Question Paper- Download Answer Key and Solution PDF

CUET 2026 Biology May 19 Shift 1 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 the structural genes of the Lac Operon in Column I with their functions in Column II.
Column I Column II
(A) lacZ (I) Permease
(B) lacY (II) Transacetylase
(C) lacA (III) \(\beta\)-galactosidase
Choose the correct answer from the options given below:

4.
Match List - I with List - II. Choose the correct answer from the options given below:
List - I List - II
P. Ribosome (i) Replication
Q. Histone (ii) Transcription
R. DNA polymerase (iii) Translation
S. RNA polymerase (iv) Nucleosome

5.
Arrange the following trophic levels in the correct sequence of a food chain starting from producers.
• Secondary Consumer
• Producer
• Primary Consumer
• Tertiary Consumer Choose the correct answer from the options given below:

6.
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

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CUET 2026 Biology May 19 Shift 1 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 the structural genes of the Lac Operon in Column I with their functions in Column II. Column IColumn II(A)lacZ(I)Permease(B)lacY(II)Transacetylase(C)lacA(III)\(\beta\)-galactosidaseChoose the correct answer from the options given below:

4.Match List - I with List - II. Choose the correct answer from the options given below: List - IList - IIP. Ribosome(i) ReplicationQ. Histone(ii) TranscriptionR. DNA polymerase(iii) TranslationS. RNA polymerase(iv) Nucleosome

5.Arrange the following trophic levels in the correct sequence of a food chain starting from producers. • Secondary Consumer • Producer • Primary Consumer • Tertiary Consumer Choose the correct answer from the options given below:

6.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

Comments

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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 the structural genes of the Lac Operon in Column I with their functions in Column II.
Column I Column II
(A) lacZ (I) Permease
(B) lacY (II) Transacetylase
(C) lacA (III) \(\beta\)-galactosidase
Choose the correct answer from the options given below:

4.
Match List - I with List - II. Choose the correct answer from the options given below:
List - I List - II
P. Ribosome (i) Replication
Q. Histone (ii) Transcription
R. DNA polymerase (iii) Translation
S. RNA polymerase (iv) Nucleosome

5.
Arrange the following trophic levels in the correct sequence of a food chain starting from producers.
• Secondary Consumer
• Producer
• Primary Consumer
• Tertiary Consumer Choose the correct answer from the options given below:

6.
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