List of top Biology Questions

Which one of the following is a false fruit?
Genetically modified plant is/are
Write an essay on the role of microorganisms in human welfare.
What is Biotechnology? Describe its various applications.
Write an essay on genetic code.
What is biodiversity? Add a note on its conservation.
Describe the human male reproductive system with suitable diagram.
Write short notes on the following: (i) Polyembryony
(ii) Formation of Fruit
Write short notes on the following: (i) Placenta formation
(ii) Red Data Book
Explain briefly the Polymerase Chain Reaction (PCR).
Draw only a clean & labelled diagram of the life-cycle of malaria parasite.
Distinguish between the following:
(i) Population and Community
(ii) Hibernation and Aestivation
Comment briefly upon the contribution of Mendel.
Define parthenogenesis. Describe the mechanism of sex determination in honeybees.
What is ascariasis? Mention its prevention and treatment in short.
Write any three differences between DNA and RNA.
What is genetic engineering? Write down two applications of genetic engineering in the field of health.
Comment upon human insulin.
What is double fertilization in plants? Who discovered it?
Write short note on adaptations of desert plants and animals.
How do biofertilizers increase the fertility of the soil?
How many chromosomes are found in Turner and Klinefelter syndromes?
Explain the Mendel's Law of Segregation.
Draw only a labelled diagram of DNA double helix model as proposed by Watson and Crick.
What are the functions of Leydig cells?