Which of the following is true about gestational age dating of the pregnancy?
a. It is an exact date by Carnegie classification.
b. It is 2 weeks older than the embryo actually is from conception.
c. It is 2 weeks younger than the embryo actually is from conception.
d. It is equivalent to the embryonic age from time of conception.
Question 2
Which of the following structures is the immediate precursor to the fetal membranes and placenta?
a. Inner cell mass
b. Epiblast
c. Trophoblast
d. Morula