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    • #578
      anwar
      Participant

      Would some body like 2 tell me about the difference in Spacer,Junk and setallite DNA ❓
      How does interons satteled in the Eukaryotics genomes ❓

    • #24669
      biostudent84
      Participant

      Junk DNA is DNA that doesn’t code for anything that’s used in the body.

    • #24711
      b_d_41501
      Participant

      Spacer DNA is there the spread out the DNA fragments that actually code for “things”. Here’s a nice link with nice pictures to explain the integration of introns in eukaryotic genomes: http://gogarten.uconn.edu/mcb221/class21.html

    • #24790
      thank.darwin
      Participant
      quote biostudent84:

      Junk DNA is DNA that doesn’t code for anything that’s used in the body.

      Well we don’t know if it is “junk” or not… it might serve some genetic purpose

    • #24796
      mith
      Participant

      From what my bio book says, satellite dna seems to be repeated fragments towards the ends of chromosomes. An associated disease is the fragile X syndrome where the ends are repeated excessively(200+ iterations).

    • #24798
      b_d_41501
      Participant

      I’ve also read that it is present to serve as large targets for mutations to reduce the chance of “coding DNA” being affected by mutations.

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