List of top Biology Questions

Describe the important enzymes required for genetic engineering.
How does the production of insulin take place in genetically modified organisms?
What is biofertilizer? A farmer is advised to add a culture of which bacterium before sowing? How is this bacterium useful to the crop?
Write the important goals of Human Genome Project (HGP).
What is gene therapy? Illustrate this using the example of adenosine deaminase (AD deficiency.
What are cleistogamous flowers? Can cross-pollination occur in cleistogamous flowers? State the reasons.
Write two useful functions of Lactic Acid Bacteria (LA.
Write the difference between DNA and RNA.
Draw a well-labelled diagram of DNA double helix model.
Explain the causes of Klinefelter's syndrome. Also mention the symptoms of this syndrome.
What do you mean by metastasis?
Define population and community.
Describe the structure of human sperm with a well-labelled diagram.
PCR stands for
What is double fertilization?
Name the flower which shows incomplete dominance.
What are the finger-like projections on the edges of the infundibulum called?
The exaggerated response of the immune system to certain antigens present in the environment is called
What does ELISA stand for?
If the sequence of one strand of DNA is written as follows: 5' - ATGC ATGC ATGC ATGC ATGC - 3', write down the sequence of the complementary strand in 3' → 5' direction.
Briefly describe the mechanism of transcription in prokaryotes.
Give a brief account of different population growth models.
Write short notes on the following: (i) DNA Palindrome (ii) Carrying capacity
Describe in detail energy flow in an ecosystem.
Which one of the following is not a stop terminator codon?