Meiosis vs. Mitosis

Flashcards by , created over 4 years ago

These flash cards describe the different stages of Mitosis and Meiosis.

Created by nvart00 over 4 years ago
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Question Answer
Mitosis Mitosis is the stage between G2 and Cytokinesis. It is the division of cell that repairs lost cells in the body.
Meiosis Meiosis is the stage of the cell cycle between G2 and Cytokinesis. Meiosis creates 4 cells that are all genetically different that are all haploid.
Mitosis: Stage 1- DNA Synthesis Each piece of chromatid in the cell is paired with an opposite chromatid.
Mitosis: Stage 2- Prophase The chromosomes become visible and the nuclear membrane breaks down.
Mitosis: Stage 3- Metaphase The chromosomes line up along the equator (middle) of the cell. The centrioles attach to each chromosome.
Mitosis: Stage 4- Anaphase The centrioles pull apart the chromosome into chromatids and they get pulled to the poles of the cell.
Mitosis: Stage 5- Telephase The cell develops a cleavage furrow. Both new cell develop a nucleus and the DNA uncoils into chromatin.
Mitosis: Stage 6 and 7- Cytokinesis The cytoplasm divides to make two new identical cells.
Meiosis: Stage 1- Prophase 1 The chromosomes become visible. The spindle fibers appear. Nuclear membrane dissolves. The chromosomes begin crossing over
Meiosis: Stage 2- Metaphase 1 The homologous pairs line up along the equator and attach to the spindle fibers.
Meiosis: Stage 3- Anaphase 1 The spindle fibers begin to pull the chromosomes to the poles of the cell.
Meiosis: Stage 4- Telephase 1 The cell develops a cleavage furrow and form two nucleuses with the genetically different chromosome in each cell.
Meiosis: Stage 5- Interkinesis The cells divide their cytoplasm.
Meiosis: Stage 6- Prophase 2 The two new cell's chromosomes begin to appear and the nuclear membrane dissolves. Both cells now have half the chromosome they had in Prophase 1.
Meiosis: Stage 7- Metaphase 2 The chromosomes line up single file in both cells.
Meiosis: Stage 8- Anaphase 2 The chromatids then get separated to the poles of the cell.
Meiosis: Stage 9- Telephase 2 Both cells develop a cleavage furrow and new nuclei.
Meiosis: Stage 10- Cytokinesis Both divide their cytoplasm and make four genetically different cells.
The goal of Mitosis The goal of Mitosis is to make somatic cells. In Mitosis we need to make a complete copy of our DNA and then divide to make two identical new cells.
The goal of Meiosis The goal is to create four genetically different cells that are all haploid or n.
Mitosis sets In Mitosis you make a diploid set of chromosome
Meiosis sets In Meiosis you start off with 4n in Prophase 1 and by the time you finish you have n in each cell.
Crossing Over: Meiosis In Meiosis during Prophase 1 the cell's chromosome cross each parent chromosome pairs with the other parent chromosome.
Meiosis DNA The cells in meiosis increase in size and mature. There is NO S PHASE. DNA is not copied.
Mitosis: Cytokinesis in Plants and Animals In animal cells they develop a cleveage furrow and spilt in half. In plant cell a cell plate develops so that a new cell wall can develop.
Principle of Random Fertilization (Meiosis) The combination of sperm and egg is random in meiosis.
Principle of Independent Assortment When chromosomes arrange themselves in metaphase 1 or 2 they are randomly distributed.
Mitosis and Meiosis in Cell Cycle During Mitosis or Meiosis the DNA condenses into chromosomes.
DNA in Mitosis and Meiosis DNA is being divided not the cell.
Meiosis DNA Before Meiosis begins the DNA in the original cell is replicated creating the 4n set of chromosomes.