UP Board Class 12 Biology Question Paper 2025 PDF (Code 348 KJ) is available for download here. The Mathematics exam was conducted on March 3, 2025 in the Morning Shift from 8:30 AM to 11:45 AM. The total marks for the theory paper are 100. Students reported the paper to be easy to moderate.
UP Board Class 12 Biology Question Paper 2025 (Code 348 KJ) with Solutions
| UP Board Class Physics Question Paper with Answer Key |  Download |
Check Solutions |
Exine layer of pollen grain is made up of
Which one of the following is not a stop terminator codon?
The exaggerated response of the immune system to certain antigens present in the environment is called
PCR stands for
What are the finger-like projections on the edges of the infundibulum called?
Name the flower which shows incomplete dominance.
What is double fertilization?
If the sequence of one strand of DNA is written as follows:
5' - ATGC ATGC ATGC ATGC ATGC - 3',
write down the sequence of the complementary strand in 3' → 5' direction.
What does ELISA stand for?
Write the difference between DNA and RNA.
Define population and community.
Write two useful functions of Lactic Acid Bacteria (LAB).
Draw a well-labelled diagram of DNA double helix model.
What do you mean by metastasis?
Describe the structure of human sperm with a well-labelled diagram.
Explain the causes of Klinefelter's syndrome. Also mention the symptoms of this syndrome.
Describe the important enzymes required for genetic engineering.
What are the major causes of the loss of biodiversity?
What are cleistogamous flowers? Can cross-pollination occur in cleistogamous flowers? State the reasons.
What is biofertilizer? A farmer is advised to add a culture of which bacterium before sowing? How is this bacterium useful to the crop?
What is gene therapy? Illustrate this using the example of adenosine deaminase (ADA) deficiency.
Define any two of the following:
((A) Commensalism
((B) Logistic growth
((C) Parasitism
Write the important goals of Human Genome Project (HGP).
How does the production of insulin take place in genetically modified organisms?
Describe mutualism with the help of the wasp-fig relationship.
Describe in brief the exponential growth curve with the help of a suitable example.
Explain the formation of Embryo sac with the help of a diagram.
Write short notes on any two of the following:
((A) Red Data Book
Trace the events that would take place in flowers from the time of fall of pollen grain on stigma up to completion of fertilization with the help of diagram.
Describe the Hershey-Chase experiment with labelled diagram. Write the conclusion drawn by the scientists after this experiment.
What is Biogas? How is it produced? Name the microbe involved in biogas production.
Write a brief note on the role of lymphoid organs in the immune response. Elaborate the different types of lymphoid organs in the human body with examples.
Comments