Dna replication regeneration
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DNA Replication/ Regeneration. Goal of DNA Replication. Makes an _________ copy of itself (Needed for new cells produced during Mitosis). Goal of DNA Replication. Why do we need new cells? _________ Repair & _________ REGENERATION. Regeneration. Regeneration of a lost limb

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DNA Replication/ Regeneration

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Dna replication regeneration

DNA Replication/Regeneration


Goal of dna replication

Goal of DNA Replication

  • Makes an _________ copy of itself

    • (Needed for new cells produced during Mitosis)


Goal of dna replication1

Goal of DNA Replication

  • Why do we need new cells?

    • _________

    • Repair & _________

      • REGENERATION


Regeneration

Regeneration

  • Regeneration of a lost limb

    • 1. De-differentiation of adult cells to stem cells

    • 2. Development of stem cells into new tissue


When does it take place

When does it take place?

  • Regeneration/ Replication of new _________ takes place during the _________ cycle

  • S Phase of _________ (Mitosis)


The process of dna replication

The Process of DNA Replication

  • 1. _________

  • 2. _________

  • 3. _________

  • 4. _________________

  • 5. _________


Step 1

Step 1: _________

  • _________ strand uncoils

  • Enzyme:

    • DNA _________ unwinds it


Step 2 unzipping

Step 2: Unzipping

  • DNA strands breaks in half (unzips)

    • _________ bonds are broken

    • Enzyme: DNA helicase breaks _________ bonds


Step 2 continued

Step 2: continued

  • “Y” formation known as replication fork


Step 3 adding new parts

Step 3: Adding New Parts

  • Enzyme: DNA _________ matches original DNA strand with complementary base pairs using free nucleotides


Step 3 adding new parts1

Step 3: Adding New Parts


Step 3 adding new parts2

Step 3: Adding New Parts

  • Proofreading

    • Enzyme: DNA Polymerase can “backtrack” and _________ any mistakes that are made

  • DNA polymerase will make a mistake about 1 out of every _________ free nucleotides it matches


Step 4 two dna molecules

Step 4: Two DNA molecules

  • Final product: 2 _________ DNA strands

  • One set of DNA for each cell


Step 5 recoil

Step 5: Recoil

  • DNA strand winds back up into a _________ _________


Dna replication

DNA Replication

  • Entire chromosome can be replicated in about 8 hours


The future of dna replication regeneration

The Future of DNA Replication/ Regeneration

  • Humans capable of regenerating nerve cells (cure paralysis)?

  • Regenerating new skin cells (slow the aging process)?

  • Humans capable of

    regenerating lost limbs

    (combining lizard DNA

    with humans)?

Dr. Connors


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