2.6 Key Terms

additive gene

age of viability

allele

anoxia

Apgar scale

behavioural teratogens

Brazelton Neonatal Behavioral Assessment Scale (NBAS)

carrier

cerebral palsy

Caesarean section (C-section)

chromosome

couvade

dizygotic twins

DNA (deoxyribonucleic acid)

dominant-recessive pattern

doula

Down syndrome

embryo

embryonic period

extremely low birth weight (ELBW)

fetal alcohol syndrome (FAS)

fetal period

fetus

gamete

gene

genome

genotype

germinal period

heritability

implantation

infant mortality rate (IMR)

kangaroo care

low birth weight (LBW)

monozygotic twins

parent-infant bond

phenotype

postpartum depression

preterm birth

reflex

small for gestational age (SGA)

stem cells

teratogen

threshold effect

ultrasound

very low birth weight (VLBW)

X-linked

XX

XY

zygote