Assertion: zygote's oocyte | /r/HasProperty | derived by means of the process
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Source sentences:
text: Even the early germ cells contain 46 chromosomes; it is only their mature forms - the sex gametes, or sperms and oocytes - which will later contain only 23 chromosomes each..1 Sperms and oocytes are derived from primitive germ cells in the developing fetus by means of the process known as "gametogenesis.