ºÝºÝߣshows by User: rajpanchal0007 / http://www.slideshare.net/images/logo.gif ºÝºÝߣshows by User: rajpanchal0007 / Thu, 14 Nov 2019 14:41:37 GMT ºÝºÝߣShare feed for ºÝºÝߣshows by User: rajpanchal0007 Transposable Elements /slideshow/transposable-elements-193574615/193574615 panchalrajesh-191114144137
A transposable element (TE or transposon) is a DNA sequence that can change its position within a genome, sometimes creating or reversing mutations and altering the cell's genome size. Transposition often results in duplication of the TE. Barbara McClintock's discovery of these jumping genes earned her a Nobel Prize in 1983. Transposable elements make up a large fraction of the genome and are responsible for much of the C-value of eukaryotic cells. ]]>
A transposable element (TE or transposon) is a DNA sequence that can change its position within a genome, sometimes creating or reversing mutations and altering the cell's genome size. Transposition often results in duplication of the TE. Barbara McClintock's discovery of these jumping genes earned her a Nobel Prize in 1983. Transposable elements make up a large fraction of the genome and are responsible for much of the C-value of eukaryotic cells. ]]> Thu, 14 Nov 2019 14:41:37 GMT /slideshow/transposable-elements-193574615/193574615 rajpanchal0007@slideshare.net(rajpanchal0007) Transposable Elements rajpanchal0007 A transposable element (TE or transposon) is a DNA sequence that can change its position within a genome, sometimes creating or reversing mutations and altering the cell's genome size. Transposition often results in duplication of the TE. Barbara McClintock's discovery of these jumping genes earned her a Nobel Prize in 1983. Transposable elements make up a large fraction of the genome and are responsible for much of the C-value of eukaryotic cells. <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/panchalrajesh-191114144137-thumbnail.jpg?width=120&amp;height=120&amp;fit=bounds" /><br> A transposable element (TE or transposon) is a DNA sequence that can change its position within a genome, sometimes creating or reversing mutations and altering the cell&#39;s genome size. Transposition often results in duplication of the TE. Barbara McClintock&#39;s discovery of these jumping genes earned her a Nobel Prize in 1983. Transposable elements make up a large fraction of the genome and are responsible for much of the C-value of eukaryotic cells.
Transposable Elements from rajpanchal0007
]]> 1707 0 https://cdn.slidesharecdn.com/ss_thumbnails/panchalrajesh-191114144137-thumbnail.jpg?width=120&height=120&fit=bounds presentation Black http://activitystrea.ms/schema/1.0/post http://activitystrea.ms/schema/1.0/posted 0 Animal Cell and Tissue Based Techniques /slideshow/animal-cell-and-tissue-based-techniques/187213702 panchalrajesh-191026150828
The term ‘Tissue culture ’ refers to the culture of whole organism, tissue fragments as well as dispersed cell on a suitable nutrient medium. Tissue culture is divided into the two broad groups, i) cultures that facilitates cell to cell interactions and signaling among cell and allow their study and ii) those in which cell to cell interactions and signaling are missing. The first group consist of three distinct types of culture system, viz., (i) Organ culture( in this, whole embryonic organs or small tissue fragments are cultured in vitro in such a manner that they retain their tissue architecture, i.e., the characteristic distribution of various cell types in the given organ) (ii) Histotypic cultures ( in this, individual cell lineages are first isolated from organ, purified and multiplied; they are grown separately to high density in three-dimensional matrix to study interactions and signaling among homologous cells. (iii) Organotypic cultures ( in this, cells of different lineages are mixed together in specific ratios and spatial relationships in order to recreate a component of concerned organ). The second group consists of cell culture either as monolayer (cells are obtained either by enzymatic or mechanical dispersal of tissues into individual cells or by spontaneous migration of cells from an explants or as suspension culture. ]]>
The term ‘Tissue culture ’ refers to the culture of whole organism, tissue fragments as well as dispersed cell on a suitable nutrient medium. Tissue culture is divided into the two broad groups, i) cultures that facilitates cell to cell interactions and signaling among cell and allow their study and ii) those in which cell to cell interactions and signaling are missing. The first group consist of three distinct types of culture system, viz., (i) Organ culture( in this, whole embryonic organs or small tissue fragments are cultured in vitro in such a manner that they retain their tissue architecture, i.e., the characteristic distribution of various cell types in the given organ) (ii) Histotypic cultures ( in this, individual cell lineages are first isolated from organ, purified and multiplied; they are grown separately to high density in three-dimensional matrix to study interactions and signaling among homologous cells. (iii) Organotypic cultures ( in this, cells of different lineages are mixed together in specific ratios and spatial relationships in order to recreate a component of concerned organ). The second group consists of cell culture either as monolayer (cells are obtained either by enzymatic or mechanical dispersal of tissues into individual cells or by spontaneous migration of cells from an explants or as suspension culture. ]]> Sat, 26 Oct 2019 15:08:28 GMT /slideshow/animal-cell-and-tissue-based-techniques/187213702 rajpanchal0007@slideshare.net(rajpanchal0007) Animal Cell and Tissue Based Techniques rajpanchal0007 The term ‘Tissue culture ’ refers to the culture of whole organism, tissue fragments as well as dispersed cell on a suitable nutrient medium. Tissue culture is divided into the two broad groups, i) cultures that facilitates cell to cell interactions and signaling among cell and allow their study and ii) those in which cell to cell interactions and signaling are missing. The first group consist of three distinct types of culture system, viz., (i) Organ culture( in this, whole embryonic organs or small tissue fragments are cultured in vitro in such a manner that they retain their tissue architecture, i.e., the characteristic distribution of various cell types in the given organ) (ii) Histotypic cultures ( in this, individual cell lineages are first isolated from organ, purified and multiplied; they are grown separately to high density in three-dimensional matrix to study interactions and signaling among homologous cells. (iii) Organotypic cultures ( in this, cells of different lineages are mixed together in specific ratios and spatial relationships in order to recreate a component of concerned organ). The second group consists of cell culture either as monolayer (cells are obtained either by enzymatic or mechanical dispersal of tissues into individual cells or by spontaneous migration of cells from an explants or as suspension culture. <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/panchalrajesh-191026150828-thumbnail.jpg?width=120&amp;height=120&amp;fit=bounds" /><br> The term ‘Tissue culture ’ refers to the culture of whole organism, tissue fragments as well as dispersed cell on a suitable nutrient medium. Tissue culture is divided into the two broad groups, i) cultures that facilitates cell to cell interactions and signaling among cell and allow their study and ii) those in which cell to cell interactions and signaling are missing. The first group consist of three distinct types of culture system, viz., (i) Organ culture( in this, whole embryonic organs or small tissue fragments are cultured in vitro in such a manner that they retain their tissue architecture, i.e., the characteristic distribution of various cell types in the given organ) (ii) Histotypic cultures ( in this, individual cell lineages are first isolated from organ, purified and multiplied; they are grown separately to high density in three-dimensional matrix to study interactions and signaling among homologous cells. (iii) Organotypic cultures ( in this, cells of different lineages are mixed together in specific ratios and spatial relationships in order to recreate a component of concerned organ). The second group consists of cell culture either as monolayer (cells are obtained either by enzymatic or mechanical dispersal of tissues into individual cells or by spontaneous migration of cells from an explants or as suspension culture.
Animal Cell and Tissue Based Techniques from rajpanchal0007
]]> 376 1 https://cdn.slidesharecdn.com/ss_thumbnails/panchalrajesh-191026150828-thumbnail.jpg?width=120&height=120&fit=bounds presentation Black http://activitystrea.ms/schema/1.0/post http://activitystrea.ms/schema/1.0/posted 0 Transgenic Male Sterility /slideshow/transgenic-male-sterility-187212677/187212677 40-191026150421
Transgenes may be used to produce GMS which is dominant to fertility. In these cases it is essential to develop effective fertility restoration systems for hybrid seed production. An effective restoration system is available in at least one case, Barnase/Barstar system Recombinant DNA techniques have made it possible to engineer new systems of male sterility by disturbing any or number of developmental steps specifically required for the production of functional pollen within the microspore or for the development of any somatic tissues . ]]>
Transgenes may be used to produce GMS which is dominant to fertility. In these cases it is essential to develop effective fertility restoration systems for hybrid seed production. An effective restoration system is available in at least one case, Barnase/Barstar system Recombinant DNA techniques have made it possible to engineer new systems of male sterility by disturbing any or number of developmental steps specifically required for the production of functional pollen within the microspore or for the development of any somatic tissues . ]]> Sat, 26 Oct 2019 15:04:20 GMT /slideshow/transgenic-male-sterility-187212677/187212677 rajpanchal0007@slideshare.net(rajpanchal0007) Transgenic Male Sterility rajpanchal0007 Transgenes may be used to produce GMS which is dominant to fertility. In these cases it is essential to develop effective fertility restoration systems for hybrid seed production. An effective restoration system is available in at least one case, Barnase/Barstar system Recombinant DNA techniques have made it possible to engineer new systems of male sterility by disturbing any or number of developmental steps specifically required for the production of functional pollen within the microspore or for the development of any somatic tissues . <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/40-191026150421-thumbnail.jpg?width=120&amp;height=120&amp;fit=bounds" /><br> Transgenes may be used to produce GMS which is dominant to fertility. In these cases it is essential to develop effective fertility restoration systems for hybrid seed production. An effective restoration system is available in at least one case, Barnase/Barstar system Recombinant DNA techniques have made it possible to engineer new systems of male sterility by disturbing any or number of developmental steps specifically required for the production of functional pollen within the microspore or for the development of any somatic tissues .
Transgenic Male Sterility from rajpanchal0007
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