In fruit flies normal wings are dominant over vestigial wings. If a homozygous normal-winged fly and vestigial-winged fly were crossed, what would the phenotype of the fly offspring be?
A. all vestigial-winged
B. all normal-winged
C. three normal: one vestigial-winged
D. one normal-winged: two half-winged: one vestigial-winged
B. all normal-winged
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During forceful exhalation, the ____ muscles contract
a. diaphragm and abdominal b. external intercostal c. internal intercostal d. diaphragm and external intercostal e. diaphragm and internal intercostal
Emerging diseases ____
a. are related to lifestyle factors b. are caused by poor diet c. are never caused by viruses d. are caused by pathogens that until recently had limited impact on human health e. include obesity and type 2 diabetes
Carbon fuchsin contains:
a) acid fuchsin and hydrochloric acid b) acid fuchsin and phenol c) basic fuchsin and hydrochloric acid d) basic fuchsin and phenol
Serologic tests may be used to detect ________ for diagnosis of disease
A) the concentration of serum proteins B) the ability of the patient's antibodies to activate the complement system C) antigen-specific antibodies D) specific epitopes E) the proportion of plasma in a patient's blood