Cell Cycle, Mitosis, Cell Division (cytokinesis)
MITOSIS
THE CELL CYCLE – the regular sequence of growth and division that cells undergo
1)INTERPHASE –
· The cell grows (makes enough organelles for 2 cells)
· The cell copies its DNA (replication)
· The cell prepares for division
2) MITOSIS – Division of the nucleus – one copy of the DNA is distributed to each of the two new daughter cells
Prophase – the chromatin condenses and coils into chromosomes.
Metaphase – the chromosomes line up along the center of the cell
Anaphase – the centromeres split and one copy goes to each side of the cell
Telophase – chromosomes begin to uncoil à to chromatin
3) CYTOKINESIS – the division of the cytoplasm
· Animal cells – the cytoplasm pinches in around the middle
· Plant cells – a cell plate forms between the two new cells
THE CELL CYCLE – the regular sequence of growth and division that cells undergo
1)INTERPHASE –
· The cell grows (makes enough organelles for 2 cells)
· The cell copies its DNA (replication)
· The cell prepares for division
2) MITOSIS – Division of the nucleus – one copy of the DNA is distributed to each of the two new daughter cells
Prophase – the chromatin condenses and coils into chromosomes.
- The chromosomes are in pairs because the cell copied the DNA
- Each copy is a chromatid – they are held together by centromeres
Metaphase – the chromosomes line up along the center of the cell
Anaphase – the centromeres split and one copy goes to each side of the cell
Telophase – chromosomes begin to uncoil à to chromatin
- A new nuclear envelope forms around each new set of chromosomes
3) CYTOKINESIS – the division of the cytoplasm
· Animal cells – the cytoplasm pinches in around the middle
· Plant cells – a cell plate forms between the two new cells
MEIOSIS
Meiosis is a specialized type of cell division which reduces the chromosome number by half. This process occurs in all sexually reproducing eukaryotes (both single-celled and multicellular) including animals, plants, and fungi.
Assignment - Complete a Haiku Deck or Animoto presentation
- compare mitosis and meiosis
- describe each in detail first
- discuss how each process is similar, and how each is different
- how do the number of divisions and chromosomes compare?
- what is the general purpose of each process?
Attach your finished presentation in the assignment form below:
Assessment - also found in assessments tab
STEM CELLS AND CANCER CELLS VIDEOS FOR GROUP GOOGLE DOCS
GROUP ACTIVITY - Google Docs
Go to your Google Drive. There you will find TWO Google Docs that have been shared with you. Search for websites containing information about stem cells and cancer cells and share them on the Google Doc with your classmates.
Go to your Google Drive. There you will find TWO Google Docs that have been shared with you. Search for websites containing information about stem cells and cancer cells and share them on the Google Doc with your classmates.