Mitosis Vs Meiosis Research Paper

     More than one celled organisms grow by way of mitosis and the cytoplasmic division of body cells. On the other hand, meiosis occurs only in germ cells, which are put aside for the formation of gametes (sperm and egg). Reproduction by meiosis allows for species survival and it increases genetic variability.

Mitosis: This is the process by which a cell duplicates the chromosomes in its cell nucleus in order to generate two identical daughter nuclei.

Compare and Contrast Mitosis and Meiosis Meiosis and mitosis describes the process by which cells divide, either by asexual or sexual reproduction to produce a new organism. Meiosis is a form of cell division that produces gametes in humans these are egg cells and sperms, each with reduced or halved number of chromosomes. The number of chromosomes is restored when two gametes fuse together to form a zygote. A cell with two copies of each chromosome is called diploid cell and a cell with one copy of each chromosome is called a haploid cell.

Mitosis and meiosis are similar in several ways and different in others. The similarities include that both processes involve IPMAT. IPMAT is interphase, prophase, metaphase, anaphase and telophase. The parent cells are diploid. They both end with cytokinesis. In Metaphase and Metaphase II, the sister chromatids line up along the center. Then in Anaphase and Anaphase II, these chromatids are split and pulled towards the centrosomes. The differences are that mitosis consists of 1 division while meiosis consists of 2. Four genetically different, haploid sex cells are the products of meiosis and 2 identical, diploid somatic cells from mitosis. Mitosis occurs in all organisms except viruses and meiosis only occurs in plants, animals, and fungi.

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A) Meiosis consists of two cell divisions and is broken up into Meiosis I and Meiosis II. At the beginning of the Cell Cycle, in this case there are four chromatids each from the homologous pairs being A, a, B, b. This is the Diploid number (4) meaning it is 2 times the haploid number that will be seen at the end of meiosis II. During the S phase of interphase, the chromatids replicate and reach the end of G2 phase. Now starting meiosis, during the first stage of prophase I the chromosomes condense and pair up through synapsis with their sister chromatids creating AA, aa, BB, bb. After they pair up they go through a process called crossing over, where the homologous chromosomes share a piece of their genetic material with each other. Crossing over allows for the genetic diversity of chromosomes. Now there are four homologous chromosomes Aa, Aa, Bb, Bb, each containing heterozygous alleles because the sister chromatids exchanged genetic information with their homologous pair. During late prophase I, spindle fibers being to form where they will later attach to a homologous chromosomes centromere. The next stage is Metaphase I. During metaphase I, the homologous pairs line up at the metaphase plate, also known to be the center of the cell. The homologous pairs form a tetrad which is considered a group of four homologous chromosomes. These homologous chromosomes orient themselves randomly, which is know as the process of independent

Mitosis is the process of duplicating nuclear material one cell becomes two cells. A cell contains 46 chromosomes, this is known as diploid. This process involves prophase, metaphase, anaphase, and telophase. Mitosis ensures the continuation of the organism and helps the body build and repair. Meiosis on the other hand is for production of haploid cells, 23 chromosomes, that together with another human, new organisms are created.

[A labelled diagram of the end of the Prophase stage of a cell here would be

Cell division may happen by either mitosis or meiosis, depending on what type of cell is invovled. Mitosis is a process by which a cell divides to form two daughter cells. They each have the same exact number and kind of chromosomes as the parent cell. Meiosis occurs in the primary sex cells leading to the formation of viable egg and sperm cells. They reduce the number of chromosomes to half in each gamete so that when they are getting furtilized, the species chromosome number is kept even.

Response Feedback: Meiosis occurs only in replicating gametes or reproducing cells. In phase one, the number of chromosomes is reduced by half but the chromatid pairs remain together. In phase two, the chromatids split apart forming four daughter cells. Non-germ cells such as red blood cells or skin cells undergo mitosis.For more information on this topic, consult:Carol Mattson Porth and Glen Matfin, Pathophysiology, 8th Edition,

Mitosis - the division of a cell 's nucleus resulting in two daughter nuclei, each with the same number of chromosomes as the original nucleus.

In mitosis, a parent cell divides in half leaving two daughter cells which are genetically identical to itself. Mitosis occurs in four separate stages called prophase, metaphase, anaphase, and telophase. Starting in prophase, the mitotic spindle (which eventually pulls the chromosomes apart) starts to form and catch the condensed chromosomes and the nucleolus disappears. After the mitotic spindle is complete and full, metaphase begins with the chromosomes lining up at the center of the spindle and ends with the spindle double checking that the chromosomes are attached to the microtubules which are connected to the kinetochores. If the check is not complete, the whole cell division process is halted until it is fixed. Anaphase is the section where the cell started to divide by the sister chromatids pulling apart to opposite ends of the spindle. In telophase, everything is cleaned up and normal cell structures start to form again as the cells finish dividing and return to their normal functions (Khan

The interphases of meiosis are similar to the interphase of mitosis. G phases are times of cell growth and preparation for division. The first division, meiosis 1. Consist of the following. Prophase 1, metaphase 1, anaphase 1, and telophase 1. The nuclear envelope starts to break down during prophase 1 of meiosis and microtubules are assembled. Previously replicate chromosomes are condensed to help them move around the cell without being tangled. These condensed chromosomes can only be seen under a microscope. The homologous pairs of chromosomes exchange genetic information. This is called crossing over. The homologous pairs line up in the center of the cell during metaphase 1. Near the

Mitosis is a type of cell division that results in two daughter cells that are identical and each having the same number and kind of chromosomes as the parent nucleus, which is typical of ordinary tissue growth. Each daughter cell also carries identical DNA of the parent cell. Errors in mitosis can result when there is an incorrect DNA copy called aneuploidy. The effect of errors on the health of the cell ranges from benign to cancerous, depending on the amount and type of errors. All cancer types are traced back to harmful mutations multiplied by mitosis.

Mitosis and Meiosis plays an important roles. These two cells have a lot of similarities and also have a lot of differences. These two cells play an important role in your life.