Anthro 1001 9/4/2014
Anthro 1001 9/4/2014 2500
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This 2 page One Day of Notes was uploaded by Emily Notetaker on Thursday September 4, 2014. The One Day of Notes belongs to 2500 at Louisiana State University taught by a professor in Fall. Since its upload, it has received 115 views. For similar materials see Women Gender Studies in Women and Gender studies at Louisiana State University.
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Date Created: 09/04/14
Anthro 1001 Chapter 3 942014 Mitosis and Meiosis Function of mitosis production of genetically identical cells Function of meiosis 1 Sex cells are produced 2 Production of sex cells to transmit one genetic material to offspring Ultimate function to produce genetically variable sex cells Synapsis pairing of homologous chromosomes Crossing over recombination physical exchange of genetic material between homologous chromosomes Meiosis Meiosis I Early Prophase l Chromosomes and centrioles duplicate Centrlolos begin to IHOVG L Late Prophaso l Chromosomes line up In homologous pairs Spindle begins to lorm Metaphaso ll Chromosomes lrom each cell line up on metaphase plate 0 O 39 Anaphase II Momphaso 39 39 Microtubulos pull Chromosomes line up quot9 dupucau on metaphase plate Microtubulos attach to one homologue each 39 Anaphase I Microtubulos pull and separate pairs of chromosomes L A chromosomes from originals I l Prophase ll Both cells duplicate contriolos and lorm End of Meiosis ll Four haploid coils Telophase I lgam esl with Cell membrane quot0 UP l d constricts l1rlt2oqaovnszsj Chromosomes are surrounded by nuclear material Telophaso ll Cell membranes constrict Nuclei lorm End ol Moiosisl Two haploid cells Chromosomes are still duplicated so Meiosis It begins E Results of meiosis 0 For cells are produced each cell has haploid chromosome number Haploid number half of the chromosome number 0 Each daughter cell is genetically different from the parents cell and from each other Comparing mitosis vs meiosis Variables 1 Number of daughter cells produced 2 Number of chromosomes in daughter cells 3 Genetic structure of daughter cells compared to parent cells and other daughter cells 4 Functional result Mitosis Meiosis 1 2 4 2 Diploid Haploid 3 Identical Different 4 Exact genetic duplication Virtually infinite genetic variability
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