Q. Briefly discuss
(a) Biofortifications
(b) Role of microbes in household food processing.

Q. Give an example of Connecting Link

Q. Expand PCR. How it helps in amplification of gene of interest ?

Q. What is Menarche?

Q. What are sciophytes?

Q. What is divergent evolution? Give example.

Q. What is fertilization? In which part of the Human female reproductive system does it occur? Explain diagrammatically various physical and chemical events of fertilization in humans.

Q. In case of an infertile couple, male has abnormally low sperm count in ejaculation. Also Female has blocked oviducts and has spermicidal secretions in vagina but can provide suitable environment for development of embryo. Suggest and explain the assisted reproductive technology (ART) useful to this couple.

Q. Explain the development of female gametophyte in angiosperms. Illustrate the answer with suitable diagrams.

Q. Briefly explain the ecological pyramid which is always upright.

Q. What is pleiotropy?

Q. Briefly write about Biopiracy.

Q. Describe various causes of loss of biodiversity.

Q. What are different causes of cancer?

Q. Explain any two methods for introduction of recombinant DNA into host cell.

Q. What is meant by emasculation ? How is it useful in plant breeding programme?

Q. Define DNA Replication. In which phase of cell cycle does replication occur in Eukaryotes ? Describe briefly the mechanism of DNA replication.

Q. Write any two points of difference between B-Lymphocytes and T-Lymphocytes.

Q. What do you mean by incomplete dominance ? Give example.

Q. What is Human genome project ? Briefly write about the salient features of Human Genome project.

Q. State and explain Hardy Weinberg's Principle.

Q. Name the Bacteria which acts as Natural Genetic Engineer.

Q. Define phenotypic adaptation. Also give one example.

Q. What is the role of Ori for cloning vector?

Q. Write about cause, symptoms and modes of transmission of Amoebiasis.

Q. "Liver suffers most from excessive drinking". Discuss on the statement.

Q. What do you mean by GM organisms ? Mention any three advantages of GM organisms.