The cortical reaction causes
A. the zona pellucida or vitelline layer to harden.
B. the embryo to embed into the uterus.
C. egg membrane depolarization.
D. the sperm to bind to the egg membrane.
E. fast block polyspermy.
A. the zona pellucida or vitelline layer to harden.
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Sucrose is composed of
a. two molecules of fructose. b. two molecules of glucose. c. a molecule of fructose and a molecule of glucose. d. a molecule of fructose and a molecule of galactose. e. two molecules of galactose
In which part of the brain contains the body’s
“thermostat”?
a. hypothalamus b. amygdala c. thalamus d. anterior pituitary gland e. medulla
Which one of the following is a human blood type?
A) E+ B) B- C) ABO- D) Rh E) Rh+
The function of BMP4 is to ____________ while the function of gremlin is to __________ BMP4.
A. cause apoptosis; inhibit the function of B. induce mitosis; amplify expression of C. inhibit growth; amplify expression of D. induce mitosis; inhibit the function of E. cause apoptosis; act as a catalyst for