This would mean a change in base sequence, which is very important for the proteins to carry out their function. It could lead to a mutation and a change in the role of the protein.
Answer: prenatal
"Prenatal" comes from the Latin word "pre-," to mean before and "(g) natus," meaning birth or before birth The prenatal period (the time and events surrounding birth) is divided into three stages:1) the germinal stage, 2) the embryonic stage, and 3) the fetal stage