External sex characteristics become clearly visible around the _____ week of gestation?

Question

BlackTom AI · Accepted Answer

Question restatement: External sex characteristics become clearly visible around the _____ week of gestation?
Option 1: 24th. This would be later in gestation; external genitalia typically become recognizable earlier, not at 24 weeks, so this is not correct.
Option 2: 12th. This is the point in early fetal development when external sex characteristics begin to be distinguishable, making this the correct choice based on typical developmental timelines.
Option 3: 31st. At around 31 weeks, fetal development is far along and while features are more defined, the specific visibility of external sex characteristics is not the standard reference point at this stage, so this is not the standard answer.
Option 4: 1st. One week after fertilization does not correspond to gestational weeks, and external sex characteristics are not visible this early; this makes the option incorrect.
In summary, the commonly taught developmental milestone for external genitalia becoming clearly visible is around the 12th week of gestation, whereas the other options correspond to either much later development or an inaccurate early point.

External sex characteristics become clearly visible around the _____ week of gestation?单项选择题

类似问题

In the last third of the gestation period, 90% of fetal growth occurs.

Which of the following are NOT part of fetal or pregnancy development in the SECOND trimester?

Question at position 24 Fetal heart begins to beat at 8 weeks gestationTrueFalse

Which of the following are NOT part of fetal or pregnancy development in the SECOND trimester?

In the last third of the gestation period, 90% of fetal growth occurs.

The implementation and loading phase of the Database Life Cycle (DBLC) involves _____.

Which of the following parameters is used to determine the concentration of protein in a spectrophotometer?

更多留学生实用工具

智能学习助手

风格化写作助手

论文查重助手

文献引用助手

课堂转译助手

课堂笔记助手

Quiz搜索助手

学校历年真题

智能刷题助手

智能匹配练习

希望你的学习变得更简单