misc biology 1 DNA replication and packing part 1 (DNA replication, 5', 3', anti-parallel, polymera

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mikepl103
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242855
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misc biology 1 DNA replication and packing part 1 (DNA replication, 5', 3', anti-parallel, polymera
Updated:
2013-10-28 20:26:24
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misc biology DNA replication packing part anti parallel polymerase leading strand lagging histones
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1. misc biology DNA replication and packing part 1 (DNA replication, 5', 3', anti-parallel, polymerase, leading strand, lagging strand, DNA packing, histones)
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  1. DNA is synthesized ___ to ____
    5' to 3'
  2. The 5' end of a nucleotide contains what?
    • phosphate
  3. the 3' end of a nucleotide contains what?
    Hydroxyl

  4. what does upstream mean?
    towards the 5' end
  5. what does downstream mean?
    towards the 3' end
  6. the polymerase that assembles new strands only attaches new nucleotides to the ____ ____ _____
    3' hydroxyl group
  7. DNA polymerase synthesizes a new strand of DNA by extending from the ___ ___ of and existing _____ _____
    DNA polymerase synthesizes a new strand of DNA by extending from the 3' end of and existing nucleotide sequence
  8. Each nucleotide is connected to another nucleotide by what type of bond?
    phosphodiester bond
  9. What enzyme untwists the DNA strands?
    DNA helicases
  10. What are SSB proteins?
    proteins that bindto the unpaired DNa strands, keeping them from repairing.
  11. What is the lagging strand?
    The DNA stand is elongating discontinuously away from the replication fork

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