The probability of a structural defect is greatest ________,when organs are being formed.
A)at the end of the fetal period
B)early in the germinal period
C)early in the embryonic period
D)at the time of implantation

Question

Quizplus · Accepted Answer

The embryonic period is when the organs are being formed, which means it is the time when structural defects are most likely to occur. The germinal period is when the fertilized egg is dividing rapidly, so the risk of defects is not as high. The fetal period is the final stage of development, when the organs are maturing rather than forming, so the risk of defects is lower than during the embryonic period. Implantation occurs at the beginning of pregnancy, before organ formation begins, so it is not a significant factor in determining the likelihood of structural defects.

The Probability of a Structural Defect Is Greatest ________,When Organs