Because of the potential effects of chromosomal abnormalities, a child's development begins:
A. at conception
B. at birth
C. when embryo becomes a fetus
D. when viability occurs
--Is the answer C?
No.
When do the chromosomes of the father and those of the mother come together to form the baby?
PS --
Fetal Alcohol Syndrome is one of the terrible types of birth defects that is completely preventable, and it hinges on exactly what this question is asking you.
These problems can be prevented by not drinking any alcohol during pregnancy. Do not drink if you are trying to get pregnant or think you may be pregnant.
http://kidshealth.org/en/parents/fas.html
To determine the correct answer, let's break down the options and consider the different stages of development.
A. At conception: Conception is the moment when the sperm fertilizes the egg, forming a zygote. This is the starting point of a child's development, but it doesn't specifically relate to the potential effects of chromosomal abnormalities.
B. At birth: Birth is the point when a baby is delivered and enters the world. While this is a significant milestone in a child's life, it is not directly related to the potential effects of chromosomal abnormalities.
C. When the embryo becomes a fetus: This refers to the transition from the embryo stage to the fetus stage, which occurs around the 9th week of pregnancy. This phase marks the beginning of major organ development and the differentiation of body structures. Chromosomal abnormalities can start affecting the developing baby during this stage, so it is a reasonable answer choice.
D. When viability occurs: Viability refers to the ability of a fetus to survive outside the womb. This typically occurs around 24 weeks of gestation. While viability is another important milestone, it is not as closely related to the potential effects of chromosomal abnormalities as the transition from the embryo to fetus stage.
Considering these points, the most appropriate answer to the question would indeed be option C, when the embryo becomes a fetus.