List of top Questions asked in UP Board XII

Describe in detail how microbes can be used to decrease the use of chemical fertilizers and pesticides.
Explain DNA fingerprinting and its uses.
What do you mean by the Central Dogma of Molecular Biology?
Describe the food chain with a diagram.
Congenital metabolic disorder is:
What is the function of Sertoli cells in human testes?
Write the zoological name of the causative agent of Filaria disease.
Genetic substance of virus is:
The number of chromosomes in male drone of honeybee is:
Choose the correct option and write in your answer-book :
The cells of endosperm are:
Explain the back cross and test cross.
Describe the structure of seminiferous tubule.
Describe infectious diseases with examples.
Describe the importance of seed and fruit development.
Describe the contribution of biotechnology in agriculture.
Write a short note on Mendelism.
Write notes on the following: Ringworm, Amoebiasis
Explain symbiosis with suitable examples.
When a cross is made between a tall plant with yellow seed (TtYy) and a tall plant with green seed (Ttyy), in what proportion of the following phenotypes could be expected?
Write a note on National Park.
Describe the development of the male gametophyte of an angiospermic plant with a suitable diagram.
How does fertilization take place in an angiospermic plant? Describe post-fertilization structures and events.
Characteristic features of the structure of double-stranded DNA.
Components of an ecosystem.
Human ovum.