Your SlideShare is downloading. ×
0
Mitosis and meiosis jen
Mitosis and meiosis jen
Mitosis and meiosis jen
Mitosis and meiosis jen
Mitosis and meiosis jen
Mitosis and meiosis jen
Mitosis and meiosis jen
Mitosis and meiosis jen
Mitosis and meiosis jen
Mitosis and meiosis jen
Mitosis and meiosis jen
Mitosis and meiosis jen
Mitosis and meiosis jen
Mitosis and meiosis jen
Mitosis and meiosis jen
Mitosis and meiosis jen
Mitosis and meiosis jen
Mitosis and meiosis jen
Mitosis and meiosis jen
Mitosis and meiosis jen
Mitosis and meiosis jen
Mitosis and meiosis jen
Mitosis and meiosis jen
Mitosis and meiosis jen
Mitosis and meiosis jen
Mitosis and meiosis jen
Mitosis and meiosis jen
Mitosis and meiosis jen
Mitosis and meiosis jen
Mitosis and meiosis jen
Mitosis and meiosis jen
Mitosis and meiosis jen
Upcoming SlideShare
Loading in...5
×

Thanks for flagging this SlideShare!

Oops! An error has occurred.

×
Saving this for later? Get the SlideShare app to save on your phone or tablet. Read anywhere, anytime – even offline.
Text the download link to your phone
Standard text messaging rates apply

Mitosis and meiosis jen

1,042

Published on

Published in: Technology, Education
1 Comment
3 Likes
Statistics
Notes
No Downloads
Views
Total Views
1,042
On Slideshare
0
From Embeds
0
Number of Embeds
0
Actions
Shares
0
Downloads
0
Comments
1
Likes
3
Embeds 0
No embeds

Report content
Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
No notes for slide

Transcript

  1. Mitosis Some Questions to consider about Mitosis What is Mitosis? What is the process of Mitosis? Where does Mitosis happen? Who does Mitosis involve? What Can go Wrong in Mitosis? How long Does Mitosis take?
  2. What is Mitosis Mitosis is the process of the cell splitting thechromosomes andmaking two identicalcopies of itself. Happens in the Somatic Cells Have 46 chromosomes Diploid- two sets of chromosomes/genomes
  3. The process of Mitosis The steps involved in the process include: Interphase Early prophase Late prophase Metaphase Anaphase Telophase Cytokinesis
  4. Interphase Inter phase is the time where the cell is getting ready to divide It is the longest time in the cycle During this time the cell is growing in size The cell is also duplicating its chromosomes The cell must past certain check points to move on to the next phase
  5. Early Prophase The nucleus migrates to the center of the cell Proteins become visible Nuclear envelope disappears
  6. Late Prophase Envelope is completely gone Spindles form DNA is in homologous pairs Centrioles are on opposite sides of the nucleus
  7. Metaphase Spindle fibers attach at the centromere Homologous pairs held at the centromere Spindle fibers push and pull the homologous pairs to the center which is called the metaphase plate
  8. Anaphase Centrioles and spindle fibers pull the chromosomes to the poles The centromeres split and the chromosomes move to opposite ends of the poles Cytokinesis has started
  9. Telophase Chromosomes are less visible Nuclear envelope begins to reform around each group of chromosomes The cell membrane or cell plate starts to form
  10. Cytokinesis The division of cytoplasm The process takes one cell and makes two separate cells often called daughter cells Cytokinesis is the completion of the Mitosis process
  11. Who is involved in Mitosis All the living things with cells Specifically the somatic cells
  12. Where does Mitosis happen The Somatic cells inside the nucleus
  13. What can go wrong in Mitosis The cells can not copy right and can get only a small or large part of the chromosomes The cell could be damaged and be passing on damaged DNA which makes more problem cells Check point signals can be ignored and that can cause cancer
  14. How long does Mitosis take It depends on the cell type Liver cells can take upwards of a year to divide Some can divide in less then 8 minutes
  15. Meiosis Some Questions to consider about Meiosis What is Meiosis? What is the process of Meiosis? Where does Meiosis happen? Who does Meiosis involve? What Can go Wrong in Meiosis? How long Does Meiosis take?
  16. What is Meiosis A type of cell division that only occurs in the gamete cells or the sex cells These cells have only 23 chromosomes Haploid- one chromosome/genome
  17. What is the process of Meiosis Meiosis 1  Meiosis 2 Interphase  Prophase 2 Prophase 1  Metaphase 2 Metaphase 1  Anaphase 2 Anaphase 1  Telophase 2 Telophase 1  Cytokinesis Cytokinesis
  18. Interphase Meiosis 1-  Meiosis 2- The DNA is replicated  There is no Interphase in this phase
  19. Prophase Meiosis 1-  Meiosis 2- Homologous pairs exist  Spindles start and are connected at the  In center in a big ball centromere Synapses form Crossing over they exchange chromosome segments Genetic recombination
  20. Metaphase Meiosis 1-  Meiosis 2- The pairs line up in the  The pairs line up to the middle of the cell center of the cell
  21. Anaphase Meiosis 1-  Meiosis 2- The pairs separate and  Separate and move to move towards the poles opposite ends of the cell Centromere stays attached to one of the pairs
  22. Telophase Meiosis 1-  Meiosis 2- Nuclear envelope  Nuclei forms reforms
  23. Cytokinesis Meiosis 1-  Meiosis 2- Two cells are in diploid  Chromosomes not exact set now copies of originals They are identical because of the recombination
  24. Where does Meiosis happen The sex organs of the female
  25. Who is involved in Meiosis All living things But more specifically the Gamete cells
  26. What can go wrong in Meiosis When splitting there can be an exchange of to much DNA or to little of DNA this can cause disorders such as down syndrome
  27. How long does Meiosis take It could take anywhere from 30 minutes to 24 hours or even longer

×