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Biology
List of top Biology Questions
Comment upon human insulin.
UP Board XII - 2025
UP Board XII
Biology
Molecular biology techniques
What do you mean by bee-keeping? Explain in brief.
UP Board XII - 2025
UP Board XII
Biology
Plant Physiology
Write the name of any one sexually transmitted disease and describe its condition in brief.
UP Board XII - 2025
UP Board XII
Biology
Ecology
Describe the principle of immunization in brief. Also add a note on passive immunization.
UP Board XII - 2025
UP Board XII
Biology
Reproductive Biology
Hydrophytes are adapted to their environment. Explain with the help of examples and diagrams.
UP Board XII - 2025
UP Board XII
Biology
Biotechnology
Write short notes on Lichen and Mycorrhiza.
UP Board XII - 2025
UP Board XII
Biology
Food Technology
What is endosperm? Describe the process of development and its function.
UP Board XII - 2025
UP Board XII
Biology
Ecology
What is transcription?
UP Board XII - 2025
UP Board XII
Biology
Human health and disease
Who is the father of Green Revolution in India?
UP Board XII - 2025
UP Board XII
Biology
Environmental Science
Write the name of the bacteria that converts milk into curd.
UP Board XII - 2025
UP Board XII
Biology
Biotechnology
What is a parthenocarpic fruit? Give one example.
UP Board XII - 2025
UP Board XII
Biology
Molecular biology techniques
Name the enzymes ( which cut the DNA at specific site and ( which join two DNA fragments.
UP Board XII - 2025
UP Board XII
Biology
Plant Physiology
Name two nitrogen-fixing microorganisms.
UP Board XII - 2025
UP Board XII
Biology
Biotechnology
Write the number of chromosomes in trisomic and monosomic conditions in humans.
UP Board XII - 2025
UP Board XII
Biology
Genetics
What type of nucleus is found in bacterial cell?
UP Board XII - 2025
UP Board XII
Biology
Molecular biology techniques
The name of pathogen of typhoid is
UP Board XII - 2025
UP Board XII
Biology
Human health and disease
The endosperm of angiospermic plant is
UP Board XII - 2025
UP Board XII
Biology
Reproductive Biology
In Mendel's monohybrid cross, the phenotypic ratio of long and dwarf pea is
UP Board XII - 2025
UP Board XII
Biology
Genetics
Write two causes of biodiversity loss.
UP Board XII - 2025
UP Board XII
Biology
Environmental Issues
Which one of the following characters does not belong to xerophytic plant?
UP Board XII - 2025
UP Board XII
Biology
Ecology
What is Biogas? How is it produced? Name the microbe involved in biogas production.
UP Board XII - 2025
UP Board XII
Biology
Biotechnology
Explain the formation of Embryo sac with the help of a diagram.
UP Board XII - 2025
UP Board XII
Biology
Ecology
Describe the Hershey-Chase experiment with labelled diagram. Write the conclusion drawn by the scientists after this experiment.
UP Board XII - 2025
UP Board XII
Biology
Molecular biology techniques
Describe in brief the exponential growth curve with the help of a suitable example.
UP Board XII - 2025
UP Board XII
Biology
Biotechnology
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.
UP Board XII - 2025
UP Board XII
Biology
Human health and disease
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