List of top Questions asked in UP Board XII

Write notes on the following: ( Diagram of transverse section of female ovary.
What is megasporogenesis? Describe with a diagram the development of the female gametophyte in angiospermic plants.
How does elephantiasis (Filariasis) occur?
What are the effects of drug and alcohol abuse on the body?
Describe the structure of double helical DNA given by Watson and Crick with a diagram.
What do you understand by biopiracy?
Why did Mendel choose pea plants for his experiments?
Describe the common diseases found in humans.
State the characteristics of genetic code.
What is placenta? Write its functions.
Explain the difference between in-situ and ex-situ conservations.
Describe the structure of microsporangium with diagram.
Explain the difference between exonuclease and endonuclease enzymes.
Write a note on Biosphere.
State two distinctive properties of any population.
What are fermented beverages? Write their names.
A typical nucleosome contains how many base pairs of DNA helix?
What is the total number of chromosomes in humans?
How many contrasting characters were there in the pea plant studied by Mendel?
State the main features of human genome.
What do you mean by adaptation? Describe the various adaptations found in living organisms with suitable examples.
Turner syndrome occurs due to
The study of mutual relations between the organism and its environment is called
Explain the dihybrid cross with the help of a checkerboard.
The ability to regenerate is found in