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Spermatogonia which are diploid and found in grasshopper testes
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Primary spermatocyte which are diploid and found in grasshopper testes. Product of spermatogonia going through mitosis
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Secondary Spermatocyte which are haploid and found in grasshopper testes. Product of primary spermatocytes going through meiosis.
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Spermatids which are haploid and found in grasshopper testes. Product of secondary spermatocytes going through mitosis
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Spermatogonia which are diploid and found in grasshopper testes
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Primary Spermatocyte which are diploid and found in grasshopper testes
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Secondary Spermatocyte which are haploid and found in grasshopper testes
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Spermatids which are haploid and found in grasshopper testes. Product of mitosis from secondary spermatocytes
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Spermatids which are haploid and found in grasshopper testes
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Spermatozoa which are haploid and found in grasshopper testes
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Spermatozoa which are haploid and found in grasshopper testes
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Unfertilized egg (oogonia) which is diploid and found in Ascaris ovary (nematode)
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Sperm hit egg and fertilized the egg in the ascaris ovary
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Sperm penetration, the male pronucleus (haploid) moves towards the center of the primary oocyte (diploid), while the female nucleus moves towards the edge of the egg within the ascaris ovary
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Prophase 1: a fertilization membrane has formed around the primary oocyte. Chromosomes become visible along the egg of the ascaris ovary
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Metaphase 1: tetrads are aligned in a linear arrangement within the ascaris ovary
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Anaphase 1: Chromosomes begin separating within the ascaris ovary
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Telophase 1:Chromosomes are completely separated within the ascaris ovary
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Prophase 2: the extrusion of the first polar body (lower left), the haploid chromosomes will progress through meiosis 2. Following meiosis 2 the 2nd polar body will be extruded. Takes place within the Ascaris ovary.
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Pronuclear Fusion: female pronucleus (haploid) migrate to the center of the ovum. These two pronuclei will fuse to a single nucleus (diploid). Taking place within the ascaris ovary
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Triploidy: Two sperm simultaneously enter the egg. Almost always lethal in humans. Takes place within the ascaris ovary
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Prophase of Mitosis: Chromosomes are within the center of the cell and condense.taking place in ascaris ovary
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Metaphase of mitosis: chromosome line up linearly. Takes place within the ascaris ovary
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Polar metaphase: top down view of mitosis, ascaris ovary
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Anaphase of mitosis in ascaris ovary
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Metaphase of the 2 cell stage in ascaris ovary
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Prophase of the four cell stage, ascaris ovary
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Telophase of mitosis: Cleavage furrow partitions one cell to two, ascaris ovary
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Cross section of Lily anther
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Neutrophil of female, Barr body
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Banded polytene chromosome from salivary chromosomes of Drosophilia, fruit fly
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prophase 1 in the anthers of stamens of lily plants, diploid
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Metaphase 1 in the anthers of stamens of lily plants, diploid
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Anaphase 1 in the anthers of stamens of lily plants, diploid
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Telophase 1 in the anthers of stamens of lily plants, diploid
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Prophase 2 in the anthers of stamens of lily plants, haploid
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Metaphase 2 in the anthers of stamens of lily plants, haploid
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Anaphase 2 in the anthers of stamens of lily plants, haploid
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Telophase 2 in the anthers of stamens of lily plants, haploid
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Drosophilia salivary chromosome, polytene chromosomes
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Barr Bodies
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Late prophase 1 and metaphase 1 in the anthers of stamens of lily plants
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microsporogenesis in the lily anther telophase 1
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microsporogenesis in the lily anther, early anaphase 1
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Anaphase 2, metaphase 2
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Lily microsporogenesis, anaphase 1 right next to prophase 2
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Telophase 2
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