What hormone stimulates the milk-ejection reflex?
A. Aldosterone
B. Parathyroid hormone
C. Antidiuretic hormone
D. Oxytocin
E. Vasopressin
Answer: D
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Treatment of ALL pathogenic E. coli infections involves supportive therapy and, in some cases, may also include antimicrobial drugs
Indicate whether the statement is true or false.
Evolution is
(a) the survival of populations. (b) the process that results in changes in the genetic makeup of a population over time. (c) a group of individuals of the same species occupying a given area. (d) change in an individual’s genetic makeup over its lifetime.
Isolates from cerebrospinal fluid (CSF) or respiratory tract specimens that are gram-negative coccobacilli grow on chocolate agar in CO2 but not on blood agar, and are porphyrin-negative and nonhemolytic on rabbit or horse blood may be identified as:
a. H. parainfluenzae. b. Haemophilus parahaemolyticus. c. H. haemolyticus. d. H. influenzae.
In mice, the allele for colored fur (C) is dominant to the allele for albinism (c). The allele for normal behavior (W) is dominant to that for waltzing movement (w). Give the probable genotypes of the parents if a colored normal crossed with a white waltzer produced 10 colored normal, 8 colored waltzers, 2 white waltzers, and 11 white normal.
A. Cc Ww x cc ww B. CC Ww x cc Ww C. Cc Ww x Cc Ww D. CC ww x cc ww E. Cc Ww x Cc ww