Appeal No. 2003-1126 Page 2 Application No. 08/444,285 39. A nonhuman transgenic mammal whose somatic and germ cells contain exogenous genetic material, wherein said material does not include any virus-specific DNA and includes at least one heterologous gene and a transcriptional control sequence operably associated therewith, wherein said gene is expressed at a detectable level in a plurality of said somatic cells or said germ cells, where said genetic material is selected so that the normal development of the embryo is not prevented by said material, where said mammal is selected from the group consisting of rodents, rabbits, goats, pigs, cattle, and sheep. 51. A nonhuman mammal characterized as having somatic and germ cells that contain exogenous material that does not include any virus-specific DNA, said material including at least one heterologous gene and a transcriptional control sequence operably associated therewith, said gene being expressible at a detectable level in a plurality of said somatic cells or said germ cells of said mammal under the control of said control sequence, said genetic material being selected so that the normal development of the embryo to term is not prevented by such material, said mammal having been obtained by the following steps: (a) introducing exogenous genetic material into a pronucleus of a mammalian zygote by microinjection, said genetic material including at least one heterologous gene and a control sequence operably associated therewith, thereby obtaining a genetically transformed zygote; (b) transplanting an embryo derived from the genetically transformed zygote into a pseudopregnant female; and (c) allowing the embryo to develop to term; or a mammal descended from a transgenic mammal so produced which retains the heterologous gene in expressible form, where said mammal is selected from the group consisting of rodents, rabbits, goats, pigs, cattle, and sheep. 56. A method of producing a polypeptide or protein which comprises: (a) producing a mammal capable of expressing said polypeptide or protein at a detectable level by a method which comprises (i) introducing exogenous genetic material that does not include any virus-specific DNA into a pronucleus of a mammalian zygote by microinjection, said genetic material including at least one heterologous gene and a transcriptional control sequence operably associatedPage: Previous 1 2 3 4 5 6 7 8 9 10 11 12 13 14 NextLast modified: November 3, 2007