EXAM 1 Questions part 2
What are the main stages of conception in sea urchins?
Attraction and recognition between sperm & egg, regulation of sperm entry
into the egg, fusion, activation of egg metabolism to start development.
What are the main anatomical
Chapter 16 Notes
What does ZPA stand for?
zone of polarized activity
When a ZPA is grafted to anterior limb bud mesoderm, what happens?
duplicated digits emerge as a mirror image of the normal digits
ZPA acts as an organizer for A-P and P-D axis formation
EXAM 4 Study Guide
Describe mode of action, time of major effects, and post-natal effects:
Testosterone taken by athletes. Too much of it causes abnormalities in
women's reproductive organs. Ovarian malformation, polycystic ovarian
EXAM 3 Study Guide part 1
Define pattern formation
Set of processes by which embryonic cells form ordered spatial
arrangements of differentiated tissue.
Why is limb development a good model for the process of pattern
Helps us understand adaptat
Chapter 14 Notes
Formation of bone
Formation of cartilage
Formation of blood vessels
Formation of nerves
Formation of muscle
What are the importance features that arise out of vertebrate lim
EXAM 2 Study Guide
Term: Animal cap (pole/cells)
In amphibians, the roof of the blastocoel (in the animal hemisphere)
Term: Vegetal Pole:
The yolk containing portion of the egg or embryo.
Term: Marginal Zone (General)
The third and outer zone of the devel
Chapter 22 Notes
What are gametes?
haploid reproductive cells (i.e. sperm and eggs)
What is gametogenesis?
formation of gametes in reproductive organs of adult organisms
What are characteristics of sperm?
small, motile and stream-lined (to get to egg as f
Chapter 33 Notes
Prevents multiple sperm from getting in. Two ways, fast block and slow
The depolarization of the egg plasma membrane that begins within 1-3
seconds after a sperm binds to an egg membrane protein. Th
EXAM 1 Questions part 1
Historically, what has been the ontogeny of the science of developmental
biology? What events in history were important for the progression of
field (or set backs)?
Von Baer (1828) Four Principles and germ layers give rise to
EXAM 3 Study Guide part 2
Define sexual dimorphism
Sex is a composite phenotype that's made up of a combination of many traits
that are highly influenced by sex steroids throughout development. "Male"
and "female" are gradation of each of these traits in