Chittenden County Health Department reported 17 new cases of lyme disease in the first half of 1994 and 18 additional cases during the second half of the year. The population of the county was 204,500 at the beginning of the year and 215,000 at the end of the year. What […]

1. A nurse practitioner is providing care for several patients on a medical unit of a hospital. In which of the following patient situations would the nurse practitioner be most likely to rule out hypertension as a contributing factor? A 61-year-old man who has a heart valve infection and recurrent […]

In humans, nearsightedness and phenylketonuria are both inherited as single-locus autosomal recessive traits that assort independently. Assume that a family has been identified in which both parents were phenotypically normal, but their first child was phenylketonuric and their second child developed nearsightedness. a. What is the probability that their next […]

In whippets, wild-type dogs are skinny. A mutation in the myostatin gene causes dogs to become more muscular. Dogs containing one copy of the mutant myostatin gene are medium-muscled; dogs in which both copies of the myostatin gene are mutant are highly-muscled. A dog breeder mates a wild-type skinny dog […]