Transcript Mitosis and Meiosis

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Which form of reproduction is related to
mitosis? Why?
Which form of reproduction is related to
meiosis? Why?
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The rod like structures within a cell which
contain the DNA.
Humans have 46 chromosomes in each cell.
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Bats-44
Potatoes-48
Camels-70
Flies-8
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A cell divides into two identical cells.
Each daughter cell or offspring has the same
number of chromosomes as the parent cell.
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Occurs in single celled organisms and all
normal cells in the body.
Asexual Reproduction!
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Cell division which makes gametes.
One cell splits into four cells, each with half
the number of chromosomes as the parent
cell.
◦ Human sperm and egg cells have 23 chromosomes.
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Daughter cells have different DNA than the
one parent cell.
Only sexually reproducing organisms go
through meiosis.
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Artificial asexual reproduction.
A body cell is taken from an organism and
the nucleus is removed.
The nucleus is transplanted into an egg cell
of the same organism.
When the egg develops, it is a genetic clone
of the original organism.
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DNA cloning-only a small portion of an
organisms DNA is copied and “pasted” into
another organism. The new DNA begins to
replicate.
Reproductive cloning-making an exact copy
of an organism.
◦ Sheep, pigs, cows, cats and rabbits.
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Embryo cloning-cloning the human embryo
to harvest and study stem cells.