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  • 15. 5: Prokaryotic Transcription - Elongation and Termination . . .
    The unification of transcription, translation, and even mRNA degradation is possible because all of these processes occur in the same 5′ to 3′ direction and because there is no membranous compartmentalization in the prokaryotic cell In contrast, the presence of a nucleus in eukaryotic cells prevents simultaneous transcription and translation
  • From cultured to uncultured genome sequences: metagenomics . . .
    Based on these genomic observations, the authors proposed that the uncultured Lokiarchaeota contain a complex cellular machinery that may have facilitated the acquisition of the proto-mitochondrial endosymbiont into the ancestor of all eukaryotes This example from the field of evolutionary biology highlights that metagenomic discovery of
  • Home - Nucleotide - NCBI - National Center for Biotechnology . . .
    The Nucleotide database is a collection of sequences from several sources, including GenBank, RefSeq, TPA and PDB Genome, gene and transcript sequence data provide the foundation for biomedical research and discovery
  • 20+ Multicellular Organisms Examples
    Complex Life Cycles: Many multicellular organisms have complex life cycles that include various stages of development, such as embryonic development, growth, and reproduction Cell Communication: Cells in multicellular organisms communicate with each other through chemical signals and direct physical connections This communication is essential
  • Chromatin - National Human Genome Research Institute
    Chromatin The total DNA in the cell is about 5 to 6 feet long which has to fit inside the nucleus of a cell in an orderly fashion DNA molecules first wrap around the histone proteins forming beads on string structure called nucleosomes Nucleosomes further coil and condense gather to form fibrous material which is called chromatin
  • National Center for Biotechnology Information
    PubMed Central (PMC) is a free digital repository of biomedical and life sciences literature
  • Shotgun Sequencing - National Human Genome Research Institute
    The DNA is broken apart and many many many many many sequence reads are generated from the DNA pieces All of those data are analyzed by a computer program that looks for overlapping stretches of sequence and eventually puts that DNA puzzle back together





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