List of top Biology Questions

Give a brief account of different components of a nucleotide.
Write a note on Intra-Uterine Devices (IUD’s) and their applications.
What is age pyramid? Give a diagrammatic representation of the age pyramid of an expanding human population.
Describe the process and importance of artificial hybridization in brief.
Write a note on enzymes used in DNA replication.
What is multiple allelism? Give an example.
Comment upon Gause’s "competitive exclusion principle".
Draw a well-labelled diagram of an antibody molecule.
Give names of any two artificial ecosystems.
Write the names of different parts of a typical stamen.
What are alleles?
Name the hormone synthesised and secreted by Leydig cells.
Give a classical example of adaptive radiation.
Which of the following is an example of commensalism?
Describe lac-operon with diagram.
Mendel’s finding related to inheritance of characters were rediscovered by:
Ti plasmid vector is used to deliver gene of interest into which of the following hosts?
Describe the components of a water ecosystem in detail.
Write an essay on evidence for evolution of life on Earth.
Write an essay on biodiversity conservation.
Cells of which layer of microsporanguim are binucleate?
Write a note on the effect of alcohol.
Give a short introduction of any two drugs.
Write a note on cloning vectors.
Draw a labelled diagram of the sectional view of the mammary gland.