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Lecture Slides- Meiosis Ch13

Lecture Slides- Meiosis Ch13 - organism(a Animals Spores...

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Meiosis: reduction division • Diploid haploid • Two divisions • Great genetic diversity – Segregation of chromosomes – Crossing over
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Fig. 13-5 Key Haploid ( n ) Diploid (2 n ) Haploid gametes ( n = 23 ) Egg ( n ) Sperm ( n ) MEIOSIS FERTILIZATION Ovary Testis Diploid zygote (2 n = 46) Mitosis and development Multicellular diploid adults (2 n = 46)
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Fig. 13-6 Key Haploid ( n ) Diploid (2 n ) n n Gametes n n n Mitosis MEIOSIS FERTILIZATION MEIOSIS 2 n 2 n Zygote 2 n Mitosis Diploid multicellular
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Unformatted text preview: organism (a) Animals Spores Diploid multicellular organism (sporophyte) (b) Plants and some algae 2 n Mitosis Gametes Mitosis n n n Zygote FERTILIZATION n n n Mitosis Zygote (c) Most fungi and some protists MEIOSIS FERTILIZATION 2 n Gametes n n Mitosis Haploid multi-cellular organism (gametophyte) Haploid unicellular or multicellular organism...
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