Mr. Ulrich
Reproduction and Development
Meiosis and Sexual Reproduction
Meiosis
is NOT sexual reproduction but makes it possible
Recognize stages
mitosis vs
meiosis (click here
for a diagram)
Where does meiosis take place?
somatic vs.
gonad
Why is meiosis called reduction division?
Chromosome number vs. diploid number
Homologous pairs
Tetrads
Gametogenesis
Gonads
Sex cells
Diploid vs Haploid
why are
haploid gametes necessary to maintain the chromosome number of the offspring?
How is spermatogenesis different from oogenesis?
Sexual reproduction
external vs internal fertilization
watery
environment (sperm motility)
number of
gametes released (risk factor)
Examples of
each
external vs internal development
structures
necessary to provide for the developing embryo
external egg vs placental organisms
examples of internal and external developers (including non-placental mammals)
recognize
structures of terrestrial egg and know their functions
shell, chorion, albumin, alantois, yolk/yolk sac, amnion, embryo
compare the above structures to extra embryonic tissues in placental mammals