'Green revolution '' involves .
(I) Breaking through of natural species barriers .
(II) Systematic transfer of genes from one species to another using genetic engineering .
(III) Environmentally sound agricultural production .

In genetic engineering which is used for transfer of genes from one cell to another

The process in which viruses are involved in sexual reproduction of bacteria is called Or The transfer of genetic material from one bacterial cell to another through a vector is

Microorganisms are used in biotechnology or genetic engineering for I. the production of bioplastic II. the production of hormones III. gene therapy

(i) What is the interaction between two species called ? (ii) Name the association in which one species producers poisonous substance or a change in environmental conditions that is harmful to another species .

Find out which among the following is true and which is false (i) Recombinant DNA technology has made it possible to engineer microbes, plants and animals such that they have novel capabilities. (ii) Genetically modified organisms have been created by using methods other than natural methods to transfer one or more genes from organism to another, generally using techniques such as recombinant DNA technology. (iii) GM plants have been useful in increasing crop yields, reduce post harvest losses and make crops more tolerant of stressess. (iv) Recombinant DNA technology process have made immense impact in the area of healthcare by enabling mass production of safe and more effective therapeutics. (v) since the recombinant therapeutics are identical to human proteins, they do not induced unwanted immunological responses.

Read the following statements about genetically engineered plants. Select the ones that are advantageous . I. The increased yield from genetically engineered plants allows a smaller area of land to be farmed. II. Generally engineering plants may have improved nutritional value . III. Some plants can be genetically modified to give resistance to diseases. IV. There is more research needed on the long term effects of genetically engineered crops on the environment V. The use of genetically engineered crops may explain the increase in allergies in children

What could be the possible harm of using antibiotic resistant gene as a selectable marker in plasmid, used for gene transfer in production of GM food? (A) GM food contains the enzyme produced by the antibiotic resistance gene that was used during gene tranfer in genetic engineering. This could cause allergies since it is a foreign protein. (B) The bacteria present in the alimentary canal of the humans could take up the antibiotic resistance gene present in GM food. (C) The bacteria in the human alimentary canal would then become resistant to the concerned antibiotic. (D) The transgene may be transferred through pollen to their wild relattves and make weeds more persistant and damaging.

Cross-breeding I. refer to the cross of superior male of one breed with superior female of another breed. II. it helps to accumulate the desirable genes of the two breeds into a progeny. III. the progeny may be used for commercial production. Which of the statements given above are correct?