quiz questions Flashcards
Dictyate definition
prolonged resting phase in oogenesis where oocyte is arrested in prophase I
what molecules play a fundamental role in the process of blood vessel formation
Angiogenic factors
what proteins form gap junctions between cytoplasm of two adjacent cells
connexons
what hormone is responsible for secretion of mucus and recruitment of neutrophils
estradiol
what growth factors are key oocyte-secreted members of the transforming growth factor beta TGF-B superfamily
FF-MAS
cAMP
doppler effect to capture imaging movement of tissue and body fluids
doppler ultrasonography
low viscosity mucus that creates privileged pathways
sialomucin
signaling molecule for oocyte to cumulus cell communication
GDF-9
signaling molecule for cumulus to oocyte communication
kit-ligand or amino acids
type of communication from oocyte to cumulus cells
paracrine
type of communication from cumulus cells to the oocyte via kit-ligand
paracrine
type of communication from cumulus cells to the oocyte via amino acids
gap junctional
what molecule is present on pig cells that can cause organ rejection
alpha 1,3-galactose
gastrulation definition
formation of germ layers of early embryo
decondinsation definition
chromatin remodeling of sperm nucleus by replacing protamines with histones
male specific gene when knocked out will ablate endogenous germline
NANOS2
process of plasma membrane and outer acrosomal membrane fuse
vesiculation
specialized region on sperm head that allows the oocyte plasma membrane to fuse
equatorial segment
T/F hMG is used as medication for ovarian stimulation for women undergoing ART cycle
TRUE
what enzyme is responsible for digestion of the zona pellucida
acrosin
T/F in gene editing there are two DNA repair mechanisms where homologous direct repair allows for insertion of a specific gene
TRUE
what drives blastoceol formation
water influx
changes in oocyte from LH surge
-gap junction breakdown between granulosa cells and oocyte
-removal of meiotic inhibition
-first polar body
-haploid oocyte
-fertilization
what does preovulatory LH surge cause in relation to the follicle
-increased PGE2
-increased PGF2a
-shift from E2 to P4 by dominant follicle
oocyte secreted factors
GDF-9
BMP-15
BMP-6
cumulus cell secretions
FF-MAS
EGF-like peptides
how is an embryo formed from 3 adults
-nucleus from donor egg is removed and nucleus from mothers egg is inserted
-egg is fertilized with fathers sperm
what does hyaluronidase do
digest hyaluronic acid to allow sperm penetrate cumulus granulosa cells
