Chapter 2 Flashcards
What is the human genome project
An effort to complete complete biological maps of our genes for researchers to study
What is polygenic inheritance
Interaction between several genes determines a characteristic
What are the three prenatal stages
Germinal stage 0-2 weeks
Embryonic stage 2 weeks -2 months
Foetal stage
What are congenital abnormalities and what are they due to
They are abnormalities that are present at birth
20% heredity
10% environmental
70% both
What is teratogen and what is the study of the effects it has called
Teratogen is a factor that has a negative effect on development and causes malformations
Behavioral teratology
Name 6 factors that effect the development of the foetus
Emotional state of the mother Genetic disorders Drug and alcohol abuse Radiation Nutrition Maternal illness Age of the parents
List the birth process
- Cervix dilates to 10 cm (3-14 hours)
- Baby head emerging to baby head out (15 min - 2 hours)
- Placenta and umbilical cord expelled
What is anoxia
A lack of oxygen does damage to the babies brain cells
What does GSA stand for
Gestational age
