List of top Biology Questions asked in UP Board XII

What is Cancer? Mention its prevention and cure.
Comment upon Law of Segregation.
Explain monohybrid and dihybrid test cross.
Comment upon homology.
What is sewage?
What steps have been taken by the Government to conserve wildlife?
What is genetic engineering? Write down two applications of genetic engineering in the field of health.
What are the functions of Leydig cells?
What is double fertilization? Explain.
Define the biodiversity hotspot.
If the sequence of Nitrogenous bases in one strand of DNA-helix is 5'-ATGCATGCATGCATGC-3' then what will be the sequence of nitrogenous bases in the complementary strand of that DNA helix in 3' $\to$ 5' direction?
Write the number of chromosomes in trisomic and monosomic conditions in humans.
Draw only a labelled diagram of DNA double helix model as proposed by Watson and Crick.
What is biodiversity hotspot?
Write a short note on BT cotton.
Write an essay on Genetic code.
Write short note on:
(i) Fertilization in human
(ii) Active and Passive Immunity
Differentiate between the following fruits:
(i) Legume and Lomentum
(ii) Drupe and Schizocarpic fruit
Write short note on any two: (i) Double fertilization (ii) Sewage treatment (iii) Control of Pneumonia
Draw a labeled diagram of reproductive system of a woman.
What is Megasporogenesis? Describe the development of zygote up to formation of mature ovule in an Angiospermic flower.
What is bio-fertilizer? Describe its role in the production of food.
Write short note on any two:
(i) Red data book
(ii) Parasitism
(iii) Role of leguminous plants in increasing the fertility of soil.
Name the important components of biodiversity and mention suitable measures for its conservation.
Write short note on: (i) Genetical disorder in man (ii) Central dogma