Loading presentation...

Present Remotely

Send the link below via email or IM


Present to your audience

Start remote presentation

  • Invited audience members will follow you as you navigate and present
  • People invited to a presentation do not need a Prezi account
  • This link expires 10 minutes after you close the presentation
  • A maximum of 30 users can follow your presentation
  • Learn more about this feature in our knowledge base article

Do you really want to delete this prezi?

Neither you, nor the coeditors you shared it with will be able to recover it again.


Make your likes visible on Facebook?

Connect your Facebook account to Prezi and let your likes appear on your timeline.
You can change this under Settings & Account at any time.

No, thanks

Mitosis-Meiosis-Cell Cycle

No description

Morgan Speltz

on 20 December 2013

Comments (0)

Please log in to add your comment.

Report abuse

Transcript of Mitosis-Meiosis-Cell Cycle

Mitosis-Meiosis-Cell Cycle
By: Morgan Speltz


-Makes 2 cells
-results in new genetically identical cells (2n-2n)
-4 phases (prophase, metaphase,
anaphase, and telophase)
-Body cells are created
-The number are chromosomes stays the same
*We need Mitosis because it makes new cells and will take the place of the dead ones, so we can survive.


-Second phase of mitosis
- Chromosomes line up in the middle of
the cell
-Chromosomes are held together by spindle fibers.

-Third phase of mitosis
- Chromosomes separate and move toward opposite poles
- Once separated, they are now considered individual chromosomes

-First phase of mitosis
-Condensation of chromosomes
-Nuclear membrane and nucleolus disappear.

The Cell Cycle
G1 Phase
S Phase
G2 Phase
M Phase
G0 Phase
-Offspring cells grow to mature size
-Stands for the time following cell division
Prophase I & II
Metaphase I & II
Anaphase I & II
Telophase & Cytokinesis I & II
-Last phase of mitosis.
- Spindle fibers disassemble.
-Nuclear membrane forms around chromosomes.
-Nucleolus forms in new cells.
-Same phases as mitosis
-2 stages: I and II
-4 cells are created
-Diploid to haploid (2n-n)
-Number of chromosomes are reduced by half
-Produces gametes
-Meiosis II is not followed by copying of DNA
*We need Meiosis because without it, new lives can't be made.
-Synapsis occurs (pairing of homologous chromosomes)
-DNA coils tightly into chromosomes
-Spindle fibers form

-Chromosomes line up in the middle of the cell
- Spindle fibers from opposite poles attach to the the other homologous chromosomes

- The homologous chromosomes separate and move to opposite poles (independent assortment)
- Independent assortment results in the separation of maternal and paternal which results in genetic variation

- Chromosomes are now at opposite ends of the cell
-Nuclear membrane forms around chromosomes
-Cytokinesis begins
- Cytokinesis I forms 2 new cells while cytokinesis II forms 4 new cells

-All of the events that happen in cell division
-Includes interphase, mitosis, and cytokynesis
-Cells can leave the cycle and go to the G0 phase
*The cell cycle is important because it's the life of a cell. Without cells we wouldn't be living. They are the basic unit of life
-Follows G1 phase
-The DNA in the cell is copied

-Follows G2 phase
-The cell prepares for cell division
-Also known at mitosis
-Part of cell division
-Division of the nucleus occurs in the cell

-Occurs when cells exit the cell cycle
-Cells do not copy DNA or prepare for cell division
-Cells are done growing
Ex. Nerve cells. Once they are damaged, they can't come back
-The time between cell divisions
-Three phases: G1 phases, S phase, and G2 phase
-Happens during telophase
-The division of cytoplasm into 2 cells
-Cleavage furrow is the pinching of where the cell divides
Full transcript