List of top Biology Questions asked in UP Board XII

If the sequence of one strand of DNA is written as follows: 5' - ATGC ATGC ATGC ATGC ATGC - 3', write down the sequence of the complementary strand in 3' → 5' direction.
Write a note on Intra-Uterine Devices (IUD’s) and their applications.
Give a brief account of different components of a nucleotide.
Give names of any two artificial ecosystems.
What is the number of chromosomes in a female honeybee? What is sex determination system called in them?
Write an essay on biodiversity conservation.
What is the difference between dominance and recessiveness? .
Write the name of the indicator of industrial pollution.
What is multiple allelism? Give an example.
What is antitoxin?
Describe exponential growth.
What is gene therapy? Illustrate this using the example of adenosine deaminase (AD deficiency.
Differentiate between co-dominance and incomplete dominance.
By which is the hormone named relaxin secreted?
Tt alleles are pair of:
What is nucleoside?
Bt cotton formed from:
Write short notes on any two of the following: ( Red Data Book
What do you understand by biodiversity? How can it be preserved?
Write an essay on search for genetic material.
Write a note on Thalassaemia.
Write a note on Colour blindness.
Describe the menstrual cycle with a diagram.
What is plant succession? Explain with an example.
Write a note on immunity.