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The Cell Cycle
The Cell Cycle
Prokaryotic or Eukaryotic
Prokaryotic or Eukaryotic
Eukaryotic cells
Eukaryotic cells
What do chromosome pairs look like
What do chromosome pairs look like
The Cell Cycle
The Cell Cycle
Phases of the Cell Cycle
Phases of the Cell Cycle
A Cell’s Life
A Cell’s Life
Prophase
Prophase
Prophase
Prophase
Metaphase
Metaphase
Metaphase
Metaphase
Anaphase
Anaphase
Anaphase
Anaphase
Telophase
Telophase
Telophase
Telophase
Cytokinesis
Cytokinesis
Cytokinesis
Cytokinesis
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The Cell Cycle

содержание презентации «The Cell Cycle.ppt»
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1The Cell Cycle. 11Metaphase. Hint: Think of this as the
2The Life of a Cell. Cells pass through meta or (middle) phase where chromosomes
different stages in their lives These line up in the middle of the cell.
stages = Cell Cycle Begins when cell 12Anaphase. Hint: This is were the 2
forms, and ends when cell divides Before sisters Ana and Ana are pulled apart to
division, has to copy its DNA. different ends of the cell…so sad.
3Prokaryotic or Eukaryotic? Prokaryotic 13Telophase. Hint: Now the sisters are
cells: simple! No membrane covered far apart and starting separate lives.
organelles, small circle of DNA. Split They have to call each other by TELOphone.
into 2 parts = Binary fission Each new 14Cytokinesis. At the end of Telophase
cells contains 1 copy of the DNA. the cell membrane pinches into two
4Eukaryotic cells. More complex; more identical cells. Animal Cell. Plant Cell.
DNA DNA is in chromosome pairs = In plant cells a cell plate forms and
homologous chromosomes Humans have 23 later becomes the cell membrane.
pairs, or 46 total. 15QUIZ. The cell cycle is the cell’s
5What do chromosome pairs look like? what? Life cycle 2. What two main stages
6The Cell Cycle. make up the cell cycle? Interphase and
7Phases of the Cell Cycle. IPMAT Mitosis 3. What happens during Interphase?
Interphase: Cell grows (G1 and G2), and During interphase the cell grows and
copies its DNA (S = synthesis). copies its DNA. 4. Mitosis is all about a
8A Cell’s Life. Interphase. Mitosis cell doing what? Mitosis is all about
Prophase Metaphase Anaphase Telophase. cells dividing in half and making sure
9Phases of Mitosis. Prophase: each new cell has the exact same DNA as
PREPARATION phase; DNA twists into the parent cell.
chromosomes, nuclear membrane breaks down 16QUIZ CONT. In what phase of Mitosis do
Metaphase: Chromosomes MEET in the MIDDLE the chromosomes line up in the center of
of the cell Anaphase: Chromosomes separate the cell? Metaphase In what phase of
and move APART Telophase: The cell TEARS Mitosis do the spindle fibers first pull
into two. the chromosomes apart? Anaphase In what
10Prophase. Chromosomes starting to phase of the Mitosis do chromosomes start
form, nuclear membrane starts to break to form? Prophase.
apart.
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The Cell Cycle

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