List of top Biology Questions

In lac operon, 'Z' and 'Y' genes code for which enzymes? Also mention their functions.
Draw only the structure of antibody molecule.
Explain Co-extinctions.
Comment on Organic Farming.
Which part of female reproductive system is responsible for the collection of ovum after ovulation?
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?
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 of the following condition is not maintained in a Bioreactor for optimum growth condition?
Write any two reasons why Mendel's theory of inheritance remained unrecognised till 1900.
Which of the following is not a characteristic of pollination by wind?
Write short notes on the following: (i) Biodiversity hotspot (ii) Biopiracy
What is double fertilization? Explain.
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.
Define pollination. Briefly describe different kinds of pollination in flowering plants.
Define population. Discuss different attributes of population.
Give a detailed account of various strategies adopted for the conservation of biodiversity.
What is transcription? Briefly describe the mechanism of transcription in prokaryotes.
Explain the role of pedigree analysis in human genetics. Add a note on symbols used in pedigree analysis.
Comment on tRNA.
With the help of two suitable examples, explain the vegetative propagation in plants.
Write short notes on the following: (i) Filariasis (ii) Polyembryony
Define immunity. Differentiate between innate and acquired immunity with suitable examples.