Skip to main content

Home/ RIS IB Biology/ Group items matching "Chloroplasts" in title, tags, annotations or url

Group items matching
in title, tags, annotations or url

Sort By: Relevance | Date Filter: All | Bookmarks | Topics Simple Middle
wasin kusakabe

Direct transfer of plant genes from chloroplasts into the cell nucleus: Gene function preserved despite structural differences in the DNA - 0 views

www.sciencedaily.com/...120413121916.htm

Genes Chloroplasts Cell Nucleus DNA

shared by wasin kusakabe on 14 Apr 12 - No Cached
  • Chloroplasts, the plant cell's green solar power generators, were once living beings in their own right.
  • This changed about one billion years ago, when they were swallowed up but not digested by larger cells.
  • either direct transport in the form of DNA fragments from the chloroplasts to the nucleus or transport in the form of mRNA, which is then transcribed back into DNA.
  • ...5 more annotations...
  • Genes consist of several modules, separated by non-coding DNA regions (introns).
  • It was found that the transfer takes place without the involvement of RNA and that the DNA apparently jumps directly from the cell's chloroplasts into its nucleus.
  • t is thought that the introns even help the splicing enzymes by folding themselves into stable RNA structures, thus directing the enzymes to the right locations.
  • Since the introns obstruct protein synthesis, they need to be removed from the mRNA, a procedure described as splicing.
    • wasin kusakabe
      wasin kusakabe on 14 Apr 12
       
      The Chloroplasts was an different entity before they were swallowed up by larger cells to corporate with each other.
  • wasin kusakabe on 14 Apr 12
     
    The differences between the genes in the chloroplasts and the genes in the nucleus being researched.
Kantham Hongdusit

Inducible gene expression from the plastid genome by a synthetic riboswitch - 0 views

www.pnas.org/...6204.full

shared by Kantham Hongdusit on 16 Apr 12 - No Cached
  • Kantham Hongdusit on 16 Apr 12
     
    Riboswitches, natural RNA sensors that mediate the control of gene expression by beinding with metabolites, are engineered via a simulation to meet the requirements of translational regulation in organelles. These new riboswitches are able facilitate the expression of chloroplast genes
1 - 2 of 2
Showing 20▼ items per page