Q. What suggestions will you give to infertile couples to produce children?

Q. Explain the role of transgenic animals in production of Biological products.

Q. Define genetic drift.

Q. Give four adaptations found in animals of arid region.

Q. Why do pollen grains remain preserved for long time ?

Q. What is nucleosome ? Draw diagram of double stranded polynucleotide chain of DNA and explain its structure.

Q. What suggestions will you give to save an imbalanced ecosystem ?

Q. What are stem cells ?

Q. What is accelerated Eutrophication ?

Q. Write the names of two antibiotic resistant genes found in plasmid $P^{BR322}$.

Q. As a student of Biology how will you explain to farmers that Bee-keeping is simple and economically beneficial for them ?

Q. What is Genetic engineering ? How is a beneficial gene amplified through PCR technique ? Explain.

Q. What is codominance ? Explain with example.

Q. What is sickle cell anaemia ?

Q. Why can an offspring produced by asexual reproduction be called as a clone? Give reasons.

Q. Wasp prefers inflorescence of fig tree for laying its eggs. Explain giving reasons.

Q. What will be the effect on treatment of sewage if microbes are removed from
it ? Clarify.

Q. What is endosperm ? Explain various types of endosperms.

Q. Write four goals of Human Genome project

Q. What is the exception to Mendels law of independent assortment ?

Q. Where is the International Centre for Wheat and Maize situated ?

Q. Penicillin is obtained from which fungus ?

Q. What is Recombinant D.N.A. ? Explain the process of separation and isolation of D.N.A fragment by gel electrophoresis technique.

Q. Write the name of leaf and strip resistant variety of wheat.

Q. If acrosome of a sperm is damaged then which process will be affected and how?

Q. Give the name of that bacterial product which is used as a clot buster.

Q. Write the names of two endonuclease enzymes.

Q. What is adaptive radiation ? Explain with an example.

Q. Explain homology and analogy in animals by giving example.