What is the term used to describe the age of an embryo or fetus calculated from the presumed first day of the last normal menstrual period?
A)conceptus
B)primordium
C)epigenesis
D)gestational age
E)fertilization age

Question

Quizplus · Accepted Answer

Gestational age is calculated from the first day of the last normal menstrual period (LNMP) and is used to estimate the age of the developing fetus. This method assumes that fertilization occurs on day 14 of the menstrual cycle, which may not always be accurate, but it is a commonly used method to estimate gestational age.

What Is the Term Used to Describe the Age of an Embryo