The gland that secretes ADH is the _____.
A. anterior pituitary
B. posterior pituitary
C. kidney
D. adrenal
Answer: B. posterior pituitary
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Which of the following statements about generalized transduction is false?
A. "Head full" packaging always places only phage DNA into the phage head during phage packaging in generalized transduction. B. Generalized transduction always involves lytic phage. C. Generalized transduction can be used to map bacterial genes. D. Genes that are close together on the bacterial chromosome will have a relatively large cotransduction frequency. E. Two recombination events are necessary to integrate the transferred DNA during generalized transduction.
Which of the following sub-disciplines of
biology focuses on understanding the entire genetic composition of organisms?
a. evolutionary biology b. molecular biology c. genomics d. comparative anatomy e. embryology
“D” shows the entry of the __________ into the
__________. a. superior vena cava; left atrium b. inferior vena cava; right atrium c. pulmonary arteries; left atrium d. pulmonary veins; left atrium e. coronary arteries; aorta
Just before entering the small intestine, what is the pH of chyme?
A) very basic (very high pH) B) slightly basic (high pH) C) neutral (pH near 7) D) acidic (low pH)