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MITOSIS

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by

tomasa koby

on 27 January 2015

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Transcript of MITOSIS

Analytical Bio.
What is Mitosis?
Explanation
Essential facts
Mitosis does not make sperm or egg cells
MITOSIS AND MEIOSIS!
P.M.A.T.?
What is Meiosis?
Comaprison Of The Stages
Meiosis
During meiosis, cells undergo two separate divisions which results in a reduction of the chromosome number.
In the first division, the chromosomes pairs split and in the second division, the sister chromatids split.
The four daughter cells (gametes) that result are haploid with half the chromosomes of the parent cell. Each daughter cell contains genetic information from both parents.
THANK YOU :)

Revenge.. ?
By
Tomasa & Koby
Grows and Repairs cells
Makes identical cells
Makes body cells
Helps you grow!
P
ropahase
M
etaphase
A
naphase
T
elophase
Prophase - Beginning step, chromosomes condensing
Metaphase - chromosomes in the middle
Anaphase - spindles move cells in opposite ends
Telophase - Ends up in two cells
Like This
Each cell needs 46 chromosomes
- These chromosomes are made of DNA & protein
Cells hold something called a nucleus
YOU WANT IDENTICAL CELLS
Produces gametes
sperm cells & egg cells
Meiosis is all about sperm & egg cells.
Sperm cells & egg cells each have 26 chromosomes.
Similarities Between The Two?
Essential Facts
1. It is the reduction division, so it reduces the number of chromosomes in half, making the daughter cells haploid (when the parent cell diploid).
2. It is during meiosis I that most of the genetic recombination occurs.
Prophase, Metaphase, Anaphase, Telophase
Mitosis
Prophase I
Metaphase I
Anaphase I
Telophase I
Prophase II
Metaphase II
Anaphase II
Telophase II
Meiosis
3. The cells are all different from each other.
Unique!
P.M.A.T. Happens 2x In Meiosis
But Interphase only occurs once though
1. Mitosis and meiosis are the two ways by which cells reproduce. As a result, they share several steps in their respective processes.
2. Both mitosis and meiosis produce fresh new cells based on their parent cells' genes.
Differences Between Mitosis and Meiosis?
1. Mitosis takes place all over the body, while meiosis only takes place in the sex organs and produces sex cells.
2. Mitosis produces two cells from one parent using one division event. However, meiosis produces four new child cells with two divisions, each of which has half the genetic material of its parent
Success!
What we made
Example we used
FAIL..
Cupcakes got too moist to make Meiosis.
Barely even had frosting on Tomasa .-.
Ehh
Full transcript