Cell cycle/mitosis Chapter 6

Why do cells divide? What does this mean?

Cell division: The big picture

DNA replication-the big picture (many steps, many enzymes)

DNA replication

Cell division in prokaryotes Called binary fission

The eukaryotic cell cycle

Interphase In the nucleus,

Sister chromatids are

Mitotic phase division of nucleus prophase metaphase anaphase telophase cytokinesis: division of cytoplasm division of nucleus

Prophase

Metaphase

Anaphase

Telophase & cytokinesis

Cytokinesis in animal cells

Cytokinesis in plant cells

You have to know the sequence in order!

Let’s review so far. . . How many parent cells? How many daughter cells? How many times did the DNA replicate before division? How many mitotic divisions are there in each cycle? How many chromosomes in daughter cells? How are the daughter cells related to each other? Why? How are the daughter cells related to the parent cell? What are sister chromatids? When are they made?

Programmed cell death Called apoptosis

Then what happens?