| 1. | Primary spermatocytes are diploid ( 2N ) cells containing 46 chromosomes.
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| 2. | Spermatocytes develop from the transformation of choanocytes and oocytes arise from archeocytes.
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| 3. | Secondary spermatocytes are haploid ( N ) cells that contain 23 chromosomes.
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| 4. | Each secondary spermatocyte will form two spermatids after Meiosis II.
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| 5. | After Meiosis I, two secondary spermatocytes are formed.
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| 6. | MSP is exclusively synthesized in spermatocytes of the nematodes.
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| 7. | Alternatively they go on to differentiate into spermatocytes, spermatids and finally spermatozoa.
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| 8. | Here the spermatocytes pass through the basal membrane via the sertoli cell barrier.
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| 9. | The tail or " flagellum " executes the lashing movements that propel the spermatocyte.
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| 10. | There are two types of spermatocytes, primary and secondary spermatocytes ( Figure 1 ).
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