Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Q. What is genetic engineering?
Genetic engineering, It is also known as molecular cloning or gene cloning, is artificial recombination of nucleic acid molecules in a test tube; their insertion into a virus, bacterial plasmid or other vector system; and subsequent incorporation of chimeric molecules into a host organism in which they are capable of continued propagation. Construction of such molecules hasalso been called gene manipulation since it usually involves production of novel genetic combinations by biochemical means. Genetic engineering techniques include cell fusion and the use of recombinant DNA or gene-splicing. In cell fusiontough outer membranes of sperm and egg cells are removed by enzymes, and then fragile cells are mixed and combined with aid of chemicals or viruses. Result may be the creation of a new life form from two species (a chimera). RecombinantDNA techniques transfer a specific genetic activity from one organism to the subsequent through the use of bacterial plasmids (small circular pieces of DNA lying outside the main bacterial chromosome) and enzymes, like restriction endonucleases (that cut the DNA strands); reverse transcriptase (that makes a DNA strand from an RNAstrand); DNA ligase (that joins DNA strands together); and Taq polymerase (that can make a double-strand DNA molecule from a single-strand "primer" molecule). Recombinant DNA process begins with the isolation and fragmentation of suitable DNA strands. After these fragments are combined with vectors, they are carried into bacterial cells, where DNA fragments are "spliced" on to plasmid DNA which has been opened up. These hybrid plasmids are then mixed with host cells to form transformed cells. Because only some of the transformed cells will exhibit desired characteristic or gene activity, transformed cells are separated and grown individually in cultures. This methodology has been successful in producing large quantities of hormones (like insulin) for biotechnology industry. However it is more difficult to transform plant and animal cells. Yet technique exists to make plants resistant to diseases and to make animals grow larger. As genetic engineering interferes withprocesses of heredity and can change genetic structure of our own species, there is much concern over ethical ramifications of such power, and possible health and ecological consequences of creation of these bacterial forms.
Q. What are the organs that are part of the male genital system? The organs that comprise the male genital system are the testicles, the vas deferens, the seminal vesicles, the
Q. In hormonal terms why does menses occur? Menses is the endometrial monthly desquamation that occurs as the progesterone and estrogen levels fall after the regression of the
Which of the following serves as an effector, or part of an effector, that functions in a negative feedback system? A. 1,25-dihydroxyvitamin D Receptors located intracellularly
Q. What are the respective functions of the micronucleus and of the macronucleus in the paramecium? The macronucleus is properly the cell nucleus it has RNA and DNA and acts as
Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4
Explain the Absorption of Protein? Although single amino acids are liberated in the intestinal contents, there is insufficient power in the enzymes of the pancreatic juice to r
Explain About the High Risk Pregnancies? Until now we have considered the nutritional needs of pregnant women. In this sub-section, we will consider specific conditions that co
Gastro Epiploic artery GEA is seldom used now. Patency has been reported as 94 per cent at one year, 88 per cent at five years and 83 per cell1 at ten years. Inferior Epiga
Write about 25 parasites of protozoans? And writ the class family and full history about these parasites?
Suppose a sample of 200 microliters of blood needs to be diluted 1/50. How much diluents should be added and what will be the final volume? Show all steps.
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd