List of top Biology Questions

Explain Stirred-tank Reactor.
Mention any three vectorless methods that are used to introduce recombinant DNA into competent host cell.
Explain Logistic Growth with equation.
Explain how distribution of animals and plants is affected by light, with examples.
Draw the schematic chart representation of Oogenesis.
Write short notes on Active Immunity and Vaccination.
Which type of cross is used to determine the genotype of tall pea plant? Explain.
Why did Mendel select pea plants for his experiments?
In lac operon, 'Z' and 'Y' genes code for which enzymes? Also mention their functions.
Comment on Organic Farming.
Write the names of any two cyanobacteria responsible for nitrogen fixation.
Draw only the structure of antibody molecule.
Explain Co-extinctions.
What is the difference between false fruit and true fruit? Under which category does the apple fall and why?
Write any two reasons why Mendel's theory of inheritance remained unrecognised till 1900.
How many peptide bonds does each antibody molecule have?
Which bacterium did Frederick Griffith use for his research? Also mention the name of the disease caused by that bacterium.
Which part of female reproductive system is responsible for the collection of ovum after ovulation?
Which of the following condition is not maintained in a Bioreactor for optimum growth condition?
Oxalis and Commelina produce which two types of flowers? Name them.
Sickle cell anemia is caused by substitution of Glutamic Acid by which amino acid?
Which of the following is not a characteristic of pollination by wind?
Write short notes on the following: (i) Biodiversity hotspot (ii) Biopiracy
What are cloning vectors? Briefly explain the characteristics of cloning vectors.
Describe the process of spermatogenesis in brief. Add a note on the role of FSH and LH in spermatogenesis.