List of top Biology Questions

Briefly describe the role of hormones in follicular and luteal phase of menstrual cycle in female primates.
Give a brief account of different population growth models.
Which one of the following is not a stop terminator codon?
Describe in detail energy flow in an ecosystem.
Describe the applications of r-DNA technology in medicine.
Write short notes on the following: (i) Vaccination (ii) Bio-fertilizer
Write short note on primary and secondary lymphoid organs.
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.
Differentiate between innate immunity and acquired immunity giving suitable examples.
Describe the structure of a typical biogas plant with the help of a suitable diagram.
Describe the law of independent assortment in a dihybrid cross.
Draw a well-labelled diagram of an antibody molecule.
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 is age pyramid? Give a diagrammatic representation of the age pyramid of an expanding human population.
Give a classical example of adaptive radiation.
What are alleles?
Write the names of different parts of a typical stamen.
Name the hormone synthesised and secreted by Leydig cells.
Which of the following is an example of commensalism?
Write an essay on evidence for evolution of life on Earth.
Cells of which layer of microsporanguim are binucleate?
Mendel’s finding related to inheritance of characters were rediscovered by: