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29 Cards in this Set

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The genetic code
Development that is dynamic, ongoing, interactional, and unique; just four chemicals are the basic building blocks of the genetic code
Genes
the complex protein code of genetic information
- made up of DNA
Chromosones
A single molecule of DNA
Genome
the packet of instructions that contains all information needed to make all the proteins a living being needs (is inside of a chromosone)
Gamete
reproductive cell that directs process by which genetic information combined and transmitted
Father gametes: Sperm
Mother gametes: ovum
Genotype
The genetic information from the 46 chromosones that is set at conception and endures through life
Monozygotic
identical twins, originating from one zygote
Dizygotic
from two seperate zygotes
Multifactoral traits
inherited traits produced by interaction of genes and environment
polygentic traits
inherited traits produced by gene interaction
dominant gene
gene showing the most influence
recessive gene
gene showing the least influence
Numbe of different possibilities of children from each couple
64 trillion
Germinal Period
First 14 days of pregnancy
Embryonic period
3rd through 8th weeks of pregnancy
Fetal Period
9th week of pregnancy through birth
Age of viability
age at which preterm baby can possibly survive (22 weeks)
teratology
study of birth defects
teratogens
broad range of substances that can cause environmental insults that may cause prenatal abnormalities or later learning abilities
congenital defects
birth defects
risk analysis
weighing of factors that affect likelyhoodof teratogen causing harm
critical period
in prenatal development, the time when a particular organ or other body part is most susceptible to teratogenic damange
Threshold effect
teratogen relatively harmless until exposure reaches a certain level
Interaction effect
risk of harm increases if exposure to teratogen occurs atthe same time as exposure to another teratogen or risk
Low birth weight
less than 5 1/2 pounds at full term
preterm
birth occurs 3 or more weeks before standard 38 weeks
Apgar Scale
Name of test done on newborns 1 and 5 minutes after birth to test 5 factors worth 2 points each: heart rate, breathing, color, muscle tone, and reflexes
Percentage of ceserian births
27% in U.S., 22% is WI
Parental Alliance
commitment by both parents to cooperate in raising a child