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HSCI 100 (134)
Lecture

chapter 19

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Department
Health Sciences
Course
HSCI 100
Professor
Nienkevan Houten
Semester
Winter

Description
Chapter 19CELLGROWTHANDDIVISION3 basic stages1Growth2Division 2 typesaMitosis what the somatic and germ cells doOne nucleus divides into 2 daughter nuclei containing the same number and kinds of chromosomesbMeiosis only what the germ cells do A cell that undergoes 2 divisions that eventually ends up with 4 haploid cells3Homeostasis and repairTHECELLCYCLE1InterphaseDNA and organelles duplicateG stagegrowth1A time of major growth before DNA synthesis beginProteins needed for DNA replication are synthesizedS stage DNA synthesisDNA replication occurs copy of each chromosome sister chromatidsG stage growth2 A time of growth after DNA is synthesized and before mitosis beginProteins needed for division are synthesized ex microtubules2Cell division mitosis and cytokinesisMitosis nuclear division separation of chromatidsCytokinesis cytoplasmic division
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