Meiosis, Germ Cells, and Fertilization
Meiosis, Germ Cells, and Fertilization
Meiosis, Germ Cells, and Fertilization
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Migration of mammalian PGCs<br />
• secreted signal proteins that help attract PGCs into the<br />
developing gonad at genital ridge are chemokines<br />
• embryonic germ (EG) cells resemble embryonic stem<br />
(ES) cells<br />
• The sex chromosomes in the somatic cells of the<br />
genital ridge determine which type of gonad the ridge<br />
becomes.<br />
• a single gene on the Y chromosome has an especially<br />
important role.
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