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  2. Chromosome - Wikipedia

    en.wikipedia.org/wiki/Chromosome

    This is an accepted version of this page This is the latest accepted revision, reviewed on 23 December 2024. DNA molecule containing genetic material of a cell This article is about the DNA molecule. For the genetic algorithm, see Chromosome (genetic algorithm). Chromosome (10 7 - 10 10 bp) DNA Gene (10 3 - 10 6 bp) Function A chromosome and its packaged long strand of DNA unraveled. The DNA's ...

  3. Human genome - Wikipedia

    en.wikipedia.org/wiki/Human_genome

    The human genome is a complete set of nucleic acid sequences for humans, encoded as the DNA within each of the 24 distinct chromosomes in the cell nucleus. A small DNA molecule is found within individual mitochondria.

  4. DNA - Wikipedia

    en.wikipedia.org/wiki/DNA

    As a result, it is both the percentage of GC base pairs and the overall length of a DNA double helix that determines the strength of the association between the two strands of DNA. Long DNA helices with a high GC-content have more strongly interacting strands, while short helices with high AT content have more weakly interacting strands. [28]

  5. Chromatin - Wikipedia

    en.wikipedia.org/wiki/Chromatin

    The major structures in DNA compaction: DNA, the nucleosome, the 11 nm beads on a string chromatin fibre and the metaphase chromosome. Chromatin is a complex of DNA and protein found in eukaryotic cells. [1] The primary function is to package long DNA molecules into more compact, denser structures.

  6. Replication timing - Wikipedia

    en.wikipedia.org/wiki/Replication_timing

    In eukaryotic cells (cells that package their DNA within a nucleus), chromosomes consist of very long linear double-stranded DNA molecules. During the S-phase of each cell cycle ( Figure 1 ), all of the DNA in a cell is duplicated in order to provide one copy to each of the daughter cells after the next cell division.

  7. Oldest human DNA reveals lost branch of the human family tree

    www.aol.com/oldest-human-dna-helps-pinpoint...

    Human DNA recovered from remains found in Europe is revealing our species’ shared history with Neanderthals. ... The research pinpointed a pivotal period that began about 50,500 years ago and ...

  8. Nucleosome - Wikipedia

    en.wikipedia.org/wiki/Nucleosome

    DNA must be compacted into nucleosomes to fit within the cell nucleus. [2] In addition to nucleosome wrapping, eukaryotic chromatin is further compacted by being folded into a series of more complex structures, eventually forming a chromosome. Each human cell contains about 30 million nucleosomes. [3]

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    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!