List of top Biology Questions

What is biofertilizer? A farmer is advised to add a culture of which bacterium before sowing? How is this bacterium useful to the crop?
What are cleistogamous flowers? Can cross-pollination occur in cleistogamous flowers? State the reasons.
Write the important goals of Human Genome Project (HGP).
Describe the important enzymes required for genetic engineering.
Explain the causes of Klinefelter's syndrome. Also mention the symptoms of this syndrome.
Write two useful functions of Lactic Acid Bacteria (LA.
Define population and community.
Describe the structure of human sperm with a well-labelled diagram.
Draw a well-labelled diagram of DNA double helix model.
Write the difference between DNA and RNA.
What do you mean by metastasis?
What are the finger-like projections on the edges of the infundibulum called?
Name the flower which shows incomplete dominance.
The exaggerated response of the immune system to certain antigens present in the environment is called
What is double fertilization?
What does ELISA stand for?
PCR stands for
Briefly describe the role of hormones in follicular and luteal phase of menstrual cycle in female primates.
Write short notes on the following: (i) DNA Palindrome (ii) Carrying capacity
Which one of the following is not a stop terminator codon?
Give a brief account of different population growth models.
Briefly describe the mechanism of transcription in prokaryotes.
Exine layer of pollen grain is made up of
Describe in detail energy flow in an ecosystem.
What are cloning vectors? Write a short note on characteristics of cloning vectors.