6 Questions
During which stage of prenatal life are all organs formed?
Embryonic stage
Which stage of prenatal life is the longest?
Foetal stage
What is the consequence of a disturbance during the formation of the three germ layers?
Abortion
Which process is responsible for the formation and development of male and female gametes?
Meiosis
What is the chromosome number in the mature germ cell after gametogenesis?
23
What is the chromosome number in the primary germ cells before gametogenesis?
46
Test your knowledge of prenatal development stages and the formation of the three germ layers. Learn about the critical periods for organ development and the risks of congenital anomalies.
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