UP Board Class 12 Biology Model Paper 2023: Download Full PDF

UP Board Class 12 Biology Model Paper 2023: Download the full PDF of the 12th UP Board Class Biology Model Paper for the 2022-23 academic year from this article.

UP Board Class 12 Biology Model Paper 2023: The Class 12 Biology sample paper for the Uttar Pradesh Madhyamik Shiksha Parishad students appearing for their Board exams in the 2022-23 session is available on the Board’s official website.

The sample papers for subjects from all subjects such as mathematics, physics, chemistry, biology, computer science, history, civics etc. have now been published. The sample works for the language courses such as Hindi, English and Sanskrit are also available. The sample work for other subjects should also appear gradually.

The full sample paper of the UP Board Class 12 Biology can be downloaded from the link available in this article.

ALSO CHECK: UP Board 2023 class 12. Model papers

The instructions that accompany the biology model work:


  1. All questions are mandatory
  2. Illustrate your answers with labeled diagrams where necessary.
  3. On the other hand, the points assigned to the individual questions are indicated.

UP Board Class 12 Biology Model Paper 2023

1- Choose the correct option and write in your answer booklet:

a) Which of the following parts represents the male sex organ of the flower?

  1. stamen
  2. Rubber stamp
  3. megasporangium
  4. pollination

b) In humans, the sex of the baby is determined by

  1. Maternal sex chromosome
  2. size of the oocyte
  3. sperm size
  4. father’s sex chromosome

c) Genetic engineering is used in

  1. In treatment
  2. In agriculture
  3. Both in (i) and in (ii)
  4. None of these

d) Lichen responsible for ecological succession, in fact it shows a symbiotic relationship between

  1. Algae – Bacteria
  2. algae fungi
  3. bacteria – fungi
  4. fungi – bacteria

2- Very short answer type questions

a) Write the number of chromosomes in Klinefelter and Turnor syndrome.

b) By what division do male germ cells form sperm?

c) How many chromosomes does the pollen grain mother cell have?

d) Write down the name of the enzyme that breaks down the DNA into small segments.

e) What are the names of plants based on carbon dioxide fixation?

3- Short Answer Questions-

a) Define sex determination in birds.

b) Draw a well-labeled diagram of the double-helix DNA model proposed by Watson and Crick.

c) What is immunity?

d) An orchid plant grows on the branch of a mango tree. How would you describe the interaction between these two?

e) Draw a clean linear diagram of the biological response.

Short Answer-II type questions

4 – a) Write down any three differences between microsporangia and megasporangia.

b) In our society only women are blamed when girls are born. Define why it’s not right.

c) Define Mendol’s law of dominance using monohybrid crossing.

d) What feature of the DNA helix helps Watson and Crick propose a semi-conservative hypothesis of DNA replication? define it

5 – a) Draw a clean and labeled diagram of the life cycle of the malaria pathogen.

b) How do biological studies help us fight infectious diseases?

c) How do biological fertilizers contribute to increasing soil fertility?

d) What are baculoviruses?

6 – a) Make brief notes on the following points

  1. PCR
  2. Restriction Endonuclease Enzyme

b) What are the benefits of genetic engineering in agriculture?

c) What do you mean by transgenic animal? Give an example.

d) Distinguish the following

  1. hibernation and astivation
  2. Ectothermic and endothermic

Long answer type question-

7 – Describe the human male reproductive system using the labeled diagram. Where are sperm stored in the system?


Define microsporogenesis in flowering plants using the labeled diagram.

8th- What is genetic code? Define the main features of the genetic code.


What is Mendol’s law of segregation? Define it using the chess board.

Why is it called the Law of Purity of Gamets?

9 – What is customization? Explain with examples.


What are the main causes of breed damage (species depletion) in geographic areas?

Download the UP Board Class 12 Biology Model Paper 2023 to view the full model paper.

The biology work comprises a total of 100 points, with 70 points being assessed through a written theory test and 30 points through a practical test. The minimum number of points for passing the written theory work is 23 and for the practical test 10. The total number of points for passing is therefore 33.

Biology is commonly pursued by the UP board students to advance in the field of natural sciences such as medicine, biotechnology, etc.

UPMSP’s Grade 12 biology curriculum aims to build students’ foundations and enable them to pursue the subject at university level.

Check UP Board Class 12 Biology Syllabus 2022-23 so you don’t miss a topic.

Stay tuned for more information on UP Board Class 12 Board Exams 2022-23.

All the best!


Leave a Reply

Your email address will not be published. Required fields are marked *