Q. Write the importance of colostrum.

Q. What is transcription? What are the different parts of a DNA transcription unit? What is their role in the process of transcription?

Q. What is adaptation? Explain physiological adaptation taking an example of altitude illness.

Q. What are morphologically and genetically alike individuals called?

Q. With the help of examples, explain the process of biological evolution on the basis of morphological evidence.

Q. 'Genetic code is unambiguous and specific.' Explain.

Q. Define recombinant DNA.

Q. 'DNA replicates semi conservatively'. Prove it with the help of Matthew Meselson and Franklin stall experiment. Draw the linear diagram of the experiment.

Q. What suggestion will you give a farmer to increase the productivity of his field? Explain.

Q. Give four attributes of a population. Explain in detail the process of mutualism.

Q. Define embryogenesis.

Q. Name one Intrauterine device (IUD).

Q. How is the amplification of gene done using the technique of PCR? Explain with the help of diagram.

Q. What is the importance of biotechnology application in medicine? How does biotechnology help in the production of human insulin?

Q. Given four causes of loss in biodiversity. Explain the adverse effects on native species on an invasion of alien species in a habitat.

Q. What is spermiogenesis? Demonstrate diagrammatically the process of spermatogenesis.

Q. Write down in sequence the main steps of plant breeding. What is its importance?

Q. How do ultraviolet rays coming from sun affect the living organisms?

Q. Why does BT toxin does not kill the bacterium that produces it, but kill the insect that ingests it?

Q. Explain carbon cycle in ecosystem. Give a linear diagram of carbon cycle.

Q. How is conservation of biodiversity done? How will we conserve an animal to save it from extinction?

Q. 'DNA is a genetic material.' Prove it with the help of Hershey - Chase experiment. Draw linear diagram of the experiment.

Q. What are the ill effects of algal blooms?

Q. What is the genotype of a person having Klinefelter syndrome?

Q. With reference to fermented beverages, explain the role of microbes in industrial products.

Q. Explain in detail the process of development of female gametophyte. Draw diagram.

Q. Write the full form of IVF.

Q. Explain the structure of microsporangium and write the functions of its different layers.

Q. Who propounded the biological evolution theory of use and disuse of organs.

Q. What is decomposition? Write down its steps. Give a diagrammatic representation of decomposition cycle in a terrestrial ecosystem.