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At what stage of fetal development does twinning cease to be biologically possible?
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- At which stage of pregnancy does the highest risk ofcentral nervous system damage occur?how does malnutrition during critical periods of development affect the fetusWhat two phases of a person's life do testosterone determine "male" development? Consider both gonadal and brain development, as outlined in the slides, as well as secondary sex characteristics. What does this imply about gender identity later in life?
- What is a three-parent baby? The procedure in creating one through vitro fertilizationand What problem does it solve?Why is advanced maternal age high risk?Suppose that in the near future, you are a prenatal care provider. In the most recent ultrasound checkup on the expecting mother, you unfortunately found that the fetus is suffering a neural tube defect in the form of anencephaly. Seeing as the mother is still in the 12th week of pregnancy or the 1st trimester, the pregnancy can still be terminated via medical means. How would you explain to the parents the situation they are in?
