List of top Biology Questions

What type of nucleus is found in bacterial cell?
How many meiotic divisions are required to get 200 grains of Barley?
Mention the name of causal organism of Typhoid fever.
Congenital metabolic disorder is:
Number of pollen sacs in an anther is:
Which one is found in pollen grain?
Write short notes on any two of the following: (i) Adenosine Deaminase Deficiency (ii) Interspecific Competition with example (iii) Human Genome Project
Describe the disorders from the following chromosomal abnormal arrangements: (i) Trisomy of Chromosome 21 (ii) XXY
Explain the salient features of Genetic code.
Define Parturition. Give an account of different hormones involved during this process.
Mention any three drawbacks of insulin obtained from the pancreas of slaughtered cattle and pigs.
Explain Competition and Parasitism with examples.
Differentiate between any two of the following:
(i) Hypocotyl and Epicotyl
(ii) Perisperm and Pericarp
(iii) Integument and Testa
Comment on in-situ and ex-situ conservation.
What is contact inhibition? Explain how the normal cell transforms into cancerous cell.
Mention any three vectorless methods that are used to introduce recombinant DNA into competent host cell.
Draw the schematic chart representation of Oogenesis.
Explain how distribution of animals and plants is affected by light, with examples.
Explain Logistic Growth with equation.
Explain Stirred-tank Reactor.
Write short notes on Active Immunity and Vaccination.
A colourblind father has a daughter with normal vision and the daughter marries a man with normal vision. What is the probability of her son being a carrier for colourblindness? Explain with pedigree chart.
In lac operon, 'Z' and 'Y' genes code for which enzymes? Also mention their functions.
What is the difference between false fruit and true fruit? Under which category does the apple fall and why?
Write the names of any two cyanobacteria responsible for nitrogen fixation.