A DNA barcode is being developed for use in conservation biology based on ______
a. mitochondrial genes in plants
b. chloroplast genes in plants
c. nuclear genes in animals
d. mitochondrial genes in animals
e. bacterial genes
D
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Sense mutations produce ____
a. elongated proteins b. shortened proteins c. extra termination codons d. frameshifts e. cell death
Entamoeba histolytica feeds on ________.
A. yeasts B. bacteria C. erythrocytes D. All of the choices are correct.
The patient's symptoms are pain upon urination and blood in the urine but no bacteria are cultured from the urine. The doctor suspects schistosomiasis. What question did the doctor asked that gave her a clue about the disease?
A. Have you been eating at places that might not be hygienic? B. Have you had a blood transfusion? C. Have you traveled out of the U.S.? D. Have you been having unprotected sex?
The standard reduction potential of a redox reaction is a measure of the tendency of the ________ to ________ electrons.
A. oxidant; lose B. oxidant; gain C. reductant; lose D. reductant; gain