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questions
List of practice Questions
What is Apomixis? Explain with example.
UP Board XII - 2025
UP Board XII
Biology
Reproduction in Plants
What are nucleosides? Explain.
UP Board XII - 2025
UP Board XII
Biology
Molecular biology techniques
Write a note on genetic engineering.
UP Board XII - 2025
UP Board XII
Biology
Biotechnology
What is opioid drug? Explain.
UP Board XII - 2025
UP Board XII
Biology
Human health and disease
Describe the structure of human sperm with diagram.
UP Board XII - 2025
UP Board XII
Biology
The Male Reproductive System
Explain the law of incomplete dominance with an example.
UP Board XII - 2025
UP Board XII
Biology
Genetics
What is the function of Leydig cells?
UP Board XII - 2025
UP Board XII
Biology
The Male Reproductive System
Cocaine is obtained from which plant?
UP Board XII - 2025
UP Board XII
Biology
Human health and disease
What is the unit of heredity?
UP Board XII - 2025
UP Board XII
Biology
Genetics
Who gave the double helical model of DNA?
UP Board XII - 2025
UP Board XII
Biology
Molecular biology techniques
Unfertilized egg develops in which form of honeybee?
UP Board XII - 2025
UP Board XII
Biology
Evolution and Adaptation
Differentiate between purine and pyrimidine bases.
UP Board XII - 2025
UP Board XII
Biology
Molecular biology techniques
Write a note on Bt cotton.
UP Board XII - 2025
UP Board XII
Biology
Biotechnology
Write a note on typhoid fever.
UP Board XII - 2025
UP Board XII
Biology
Human health and disease
Write notes on the following: ( Colourblindness.
UP Board XII - 2025
UP Board XII
Biology
Genetics
Describe different population growth models in brief.
UP Board XII - 2025
UP Board XII
Biology
Ecology
Write an essay on biodiversity and its conservation.
UP Board XII - 2025
UP Board XII
Biology
Ecology
The number of chromosomes found in maize is
UP Board XII - 2025
UP Board XII
Biology
Genetics
In Klinefelter syndrome, the number of sex chromosomes is:
UP Board XII - 2025
UP Board XII
Biology
Genetics
Suitable vector for cloning in plant cells is:
UP Board XII - 2025
UP Board XII
Biology
Biotechnology
Which of the following is a property of population?
UP Board XII - 2025
UP Board XII
Biology
Ecology
What are biofertilizers? State the role of microorganisms in their production.
UP Board XII - 2025
UP Board XII
Biology
Biotechnology
How does elephantiasis (Filariasis) occur?
UP Board XII - 2025
UP Board XII
Biology
Human health and disease
What do you understand by Bt? Explain by giving an example of Bt-cotton.
UP Board XII - 2025
UP Board XII
Biology
Biotechnology
What are the effects of drug and alcohol abuse on the body?
UP Board XII - 2025
UP Board XII
Biology
Human health and disease
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