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11 Cards in this Set
- Front
- Back
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Gametogenesis
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Process where haploid cells are produced from diploid primordial germ cells
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Primordial Germ Cells
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Derived from the yolk sac; migrate up through the dorsal mesentery of the gut and arrive at the genital ridge where the gonads develop
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Crossing-over
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Can occur during prophase I when homologous chromosomes are paired; leads to an exchange of genetic material between chromosomes and contributes to genetic diversity
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Spermatogenesis
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process by which sperm develop in the testes
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Spermatogonia
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diploid; developed from primordial germ cells that reside in the testes; divide mitotically with the testosterone influx that occurs at puberty
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Primary Spermatocytes
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diploid; what spermatogonia become when they increase in size
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Secondary Spermatocytes
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haploid; what primary spermatocytes will become when they undergo their first meiotic division
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Spermatids
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haploid; each secondary spermatocyte undergoes the second meiotic division; four created
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Path of Maturing Spermatozoa
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Pushed from the seminiferous tubules, into the rete testis, through the efferent ductules, and into epididymis for storage
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Spermiogenesis
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Process through which each spermatid loses much of its cytoplasm and gains a tail
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Acrosome
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develops from golgi apparatus and forms a cap that contains enzymes to aid the sperm penetration of the egg
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