Week 2 Flashcards
conception has what cell
germ cell from sperm
what does an egg turn into
zygote
what are the stages of prenatal development (GEF)
Germinal, embryonic, fetal
germinal period
mitosis, zygote splits, inner cell mass
embryonic period
mitosis, cell migration, differentiation
fetal period
end of 2nd month to birth, development and rapid growth - organs integrated together
senses
Vision - more top-heavy
Touch -
Smell
Taste - amniotic fluid from what the mother ate
Hearing - moms voice, most sensory input
blastocyst in what period
germinal
weeks 3-8 what period
embryonic
begins at fertilization and ends at implantation
germinal
premature infant may survive if born during this period
fetal
main feature of this period is weight gain
fetal
neural tube develops during this period
embryonic
mother will notice movements during this period
fetal
list some teratogens
viruses, bacteria, meds, alcohol, nicotine
THALIDOMIDE??????
medication for morning sickness that caused birth defects
how many genes
46 divided into 23
set of genes that an organism carries
genotype GENETICher
expressed characteristics
phenotypes PHYSICAL observable trait
heribility of trait
the percentage of variance in population of genes
mysyn
