List of top Questions asked in UP Board XII

Write short notes on the following: (i) Polyembryony
(ii) Formation of Fruit
Describe the human male reproductive system with suitable diagram.
Write short notes on the following: (i) Placenta formation
(ii) Red Data Book
What is biodiversity? Add a note on its conservation.
Write an essay on genetic code.
Draw only a clean & labelled diagram of the life-cycle of malaria parasite.
Comment briefly upon the contribution of Mendel.
Distinguish between the following:
(i) Population and Community
(ii) Hibernation and Aestivation
Explain briefly the Polymerase Chain Reaction (PCR).
What is ascariasis? Mention its prevention and treatment in short.
Define parthenogenesis. Describe the mechanism of sex determination in honeybees.
What is genetic engineering? Write down two applications of genetic engineering in the field of health.
Write any three differences between DNA and RNA.
Comment upon human insulin.
How many chromosomes are found in Turner and Klinefelter syndromes?
What is double fertilization in plants? Who discovered it?
Explain the Mendel's Law of Segregation.
How do biofertilizers increase the fertility of the soil?
Write short note on adaptations of desert plants and animals.
In humans, which type of chromosomes are responsible for sex determination?
What are the functions of Leydig cells?
Write the name of any one sexually transmitted disease and describe its control measures.
Which gas is released during the process of photosynthesis?
Which enzyme breaks the DNA molecule?
Name of vaccine for T.B. is: