Download A Closer Look at the Nucleus: Chromosomes

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Transcript
A Closer Look at the Nucleus:
Chromosomes
DNA is the blueprint for life.
A cell's DNA contains all of the
information necessary to make
a new cell and carry out its life
processes.
A cell's DNA normally exists in
long, coiled, spaghetti-like strands
inside the nucleus.
Chromosomes

Each individual strand of DNA is called a
chromosome
Before a cell can divide to
form two new identical cells,
it must make an exact copy
of each chromosome

Chromosomes in Mitosis



The process of cell division is called mitosis
When a cell divides, the chromosomes condense
and become visible
http://www.youtube.com/watch?v=N5zFOScowqo
Chromosomes in Mitosis


After the cell is finished dividing, the two new cells
are called daughter cells
Each daughter cell contains one copy of every
chromosome from the original cell.