List of top Biology Questions

What is a seed? Describe the structure of any one seed.
What is endosperm? Describe the process of development and its function.
What is transcription?
What type of nucleus is found in bacterial cell?
Name the enzymes ( which cut the DNA at specific site and ( which join two DNA fragments.
Write the name of the bacteria that converts milk into curd.
What is a parthenocarpic fruit? Give one example.
Write the number of chromosomes in trisomic and monosomic conditions in humans.
Who is the father of Green Revolution in India?
Name two nitrogen-fixing microorganisms.
The name of pathogen of typhoid is
Write two causes of biodiversity loss.
The endosperm of angiospermic plant is
Which one of the following characters does not belong to xerophytic plant?
In Mendel's monohybrid cross, the phenotypic ratio of long and dwarf pea is
Describe in brief the exponential growth curve with the help of a suitable example.
Describe the Hershey-Chase experiment with labelled diagram. Write the conclusion drawn by the scientists after this experiment.
Trace the events that would take place in flowers from the time of fall of pollen grain on stigma up to completion of fertilization with the help of diagram.
Write a brief note on the role of lymphoid organs in the immune response. Elaborate the different types of lymphoid organs in the human body with examples.
Explain the formation of Embryo sac with the help of a diagram.
What is Biogas? How is it produced? Name the microbe involved in biogas production.
What are the major causes of the loss of biodiversity?
Define any two of the following: ( Commensalism ( Logistic growth ( Parasitism
Describe mutualism with the help of the wasp-fig relationship.
Describe the important enzymes required for genetic engineering.