Feb 19, 2015 issuu is a digital publishing platform that makes it simple to publish magazines, catalogs, newspapers, books, and more online. This is not the case for meiosis, which reduces the chromosome number by half. Meiosis is the process of deriving haploid cells from diploid cells. Mitosis results in the production of two genetically identical diploid cells, whereas meiosis produces four genetically different haploid cells.
Cuadros comparativos sobre mitosis y meiosis cuadro. En estos ejemplos, cada celula diploide tiene seis cromosomas 2n 6. This is a haploid cell in metaphase and anaphase of mitosis. Meiosis begins while at first glance meiosis may appear the same as mitosis, these processes result in the formation of very different cell types. Mitosis one large cell makes two smaller cells with same number of chromosomes. In mammalsthe female has two x chromosomes, and the entreccruzamiento one x and one y chromosome.
Ap biology, mitosis, onion cells, whitefish blastula cells, images created date. In mitosis, the cells nucleus divides once to give rise to 2 genetically identical diploid cells. Tiene lugar en organismos con reproduccion asexual. Easily share your publications and get them in front of issuus. The centrioles, a pair of cylindrical structures, are also. Unlike mitosisthe way normal body cells divide, meiosis results in cells that only have half the usual number of chromosomesone from each pair. The resulting daughter cells would be halploid and genetically identical to the mother cell. Meiosis occurs only at the final division of gamete maturation. Lynda jones, ms, onprc sry is the sexdetermining region y gene. They remain in their unwound state, and are therefore invisible.
Comparacion entre mitosis y meiosis by angie garcia caro on prezi. Diferencias entre mitosis y meiosis cuadro comparativo. First you will look at what happens to the chromosomes of animals and. As in mitosis, if a cell wants to make a duplicate of itself, it first must copy its dna part of a chromosome. Ambos cromosomas seran transmitidos a cada celula hija en cada mitosis. Meiosis can be considered as two cell divisions known as meiosis i and meiosis ii, each of which can be considered as having prophase, metaphase, anaphase and telophase stages as in mitosis. Cuadros comparativos sobre mitosis y meiosis cuadro comparativo.
Join our community just now to flow with the file meiosis and mitosis and make our shared file collection even more complete and exciting. Meiosis produces daughter cells with half the information c ontained in the parent cell. Cell division, perhaps the most important is among the most difficult topics in biology to teach. The cell cycle, mitosis and meiosis university of leicester. This free course, meiosis and mitosis, looks at how units of inheritance are transmitted from one generation to the next. Cells produced will fuse together during sexual reproduction. Understanding of mitosis and meiosis in higher secondary. Mitosis and meiosis indiana university bloomington.
Miguelbiologia globalbiologiaseccion 33 capitulo 11. Meiosis can be viewed as essentially two mitotic divisions backtoback, without an additional sphase between the two divisions. Mitosis is a form of asexual reproduction, whereas meiosis is an early step in sexual reproduction. The phases of meiosis are s phase the dna is replicated, fo rming sister chromatids. Mitosis can occur in either haploid or diploid cells, whereas meiosis occurs only in cells with the diploid or polyploidy number of chromosomes. Understanding of mitosis and meiosis in higher secondary students of northeast india and the implications for genetics education ansuman chattopadhyay department of zoology, visvabhatati, 731235, santiniketan. In meiosis, however, there are two nuclear divisions. Pachytene stage of prophase i of meiosis in the testes centromeres paternal y sister chromatids maternal x sister chromatids sry gene pseudoautosomal region par where the x and y chromosomes synapse or forming a fused x and y tetrad known as the sex body drawing. Mitosis y meiosis pdf by darwin daniel campos issuu. Diferencias entre mitosis y meiosis comparacion mitosis. Figure 16 shows the division of chromosomes and chromatids during meiosis. Comparacion meiosis, mitosis recursos educativos digitales. In the anaphase cell, there are 4 chromosomes present.
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