The expression of only one allele of a gene and silencing of the other allele, all based on which parent

contributed each allele, is



a. sex-linked inheritance.
b. uniparental inheritance.
c. cytoplasmic inheritance.
d. genomic imprinting.
e. maternal inheritance.


D

Biology & Microbiology

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The most commonly identified waterborne illness in the United States is

A. amoebiasis. B. cryptosporidiosis. C. balantidiasis. D. giardiasis.

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Maternal messages in the form of mRNA is

distributed during

a. zygote formation. b. gastrulation. c. cleavage. d. neurulation. e. blastulation

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Describe the movement of oxygen and carbon dioxide during gas exchange.

A. Oxygen diffuses out of the lungs into red blood cells and carbon dioxide diffuses out of red blood cells into the kidney nephrons. B. Carbon dioxide diffuses out of the lungs into red blood cells and oxygen diffuses out of red blood cells and into the lungs. C. Oxygen diffuses out of the lungs into red blood cells and carbon dioxide diffuses out of red blood cells and into the lungs.

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Select the best response to the question. ?Which of the following patients are at high risk for developing ?Pneumocystis jiroveci? pneumonia (PJP)?

A) a patient who has had a liver transplant B) a patient with severe lung disease C) a patient who has had a myocardial infarction ("heart attack") D) a patient who has taken several different antibiotics in the past 3 months

Biology & Microbiology