List of top Biology Questions

What are cloning vectors? Write a short note on characteristics of cloning vectors.
What are transgenic animals? Describe the benefits of transgenic animals in brief.
Describe the law of independent assortment in a dihybrid cross.
Write short note on primary and secondary lymphoid organs.
Write short notes on the following: (i) Vaccination (ii) Bio-fertilizer
Describe the applications of r-DNA technology in medicine.
Describe the structure of a typical biogas plant with the help of a suitable diagram.
Draw a well-labelled diagram of an antibody molecule.
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.
Comment upon Gause’s "competitive exclusion principle".
Write a note on enzymes used in DNA replication.
What are alleles?
Name the hormone synthesised and secreted by Leydig cells.
Write the names of different parts of a typical stamen.
Give a classical example of adaptive radiation.
Which of the following is an example of commensalism?
Mendel’s finding related to inheritance of characters were rediscovered by:
Describe the components of a water ecosystem in detail.
Cells of which layer of microsporanguim are binucleate?
Write an essay on evidence for evolution of life on Earth.
Describe lac-operon with diagram.
Ti plasmid vector is used to deliver gene of interest into which of the following hosts?
Write the complete form of G.M.O. Highlight its importance.
Write the importance of species diversity in an ecosystem.