Determination of sexSex is determined after conception has taken place. At an early stage as certain cells are set apart. These, later, form the sex g...ands. Modern research claims to have discovered the secret of absolutely determining sex in the human embryo, but even if these claims are valid they have not as yet met with any general application.EARLY DEVELOPMENTSome twelve days after conception, the female ovule or egg, which has been impregnated by the male spermatazoön, escapes from the. I wasn't comfortable with the idea."Stay together," I ordered, "and don't go very far in. If you lose sight of the beach then you've gone in too far." Then we can hardly go in at all," complained Amy."It's the way it is. I want us all to be together when we explore deeper." Just do what Uncle Jack says," Jan said. "He knows best."I didn't know if I knew best, but I didn't want anyone getting hurt or getting lost.Jan helped build the shelter. There was enough fallen wood, probably from the. More

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