List of top Questions asked in UP Board XII

Explain the law of incomplete dominance with an example.

Explain the importance of humans in the ecosystem.

What is Apomixis? Explain with example.

Describe the structure of human sperm with diagram.

Explain the difference between population and community.

Write a note on genetic engineering.

What are nucleosides? Explain.

Cocaine is obtained from which plant?

Unfertilized egg develops in which form of honeybee?

What is the unit of heredity?

What is the function of Leydig cells?

Write a note on typhoid fever.

Write a note on Bt cotton.

Who gave the double helical model of DNA?

Differentiate between purine and pyrimidine bases.

In Klinefelter syndrome, the number of sex chromosomes is:

The number of chromosomes found in maize is

Write an essay on biodiversity and its conservation.

Describe different population growth models in brief.

Which of the following is a property of population?

Suitable vector for cloning in plant cells is:

Write notes on the following: ( Colourblindness.

Explain the reasons for ozone depletion in the stratosphere.

Describe the structure of double helical DNA given by Watson and Crick with a diagram.

Write notes on the following: ( Diagram of transverse section of female ovary.