Which condition listed is a sex chromosome aneuploidy, usually due to trisomy XXY?
a) Emesis gravidarum
b) Deformation
c) Turner's syndrome
d) Breech presentation
e) Klinefelter's syndrome
e
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Neurotransmitter is released from the synaptic knob by exocytosis, and it then diffuses across the synaptic cleft
Indicate whether this statement is true or false.
Sweating is initiated in response to a rise in body temperature that occurs on exposure to a hot environment. Evaporation of the sweat cools the body. This is an example of
a. negative feedback. b. positive feedback. c. a feedforward mechanism. d. an intrinsic (local) control mechanism. e. autoregulation.
________ are short, membrane-attached projections containing microtubules that occur in large numbers on exposed membrane surfaces.
Fill in the blank(s) with the appropriate word(s).
Where does fertilization usually occur?
A) ovary B) vesicular (Graafian) follicle C) uterine (fallopian) tubes D) uterus E) vagina