Cystic fibrosis is the most common lethal genetic disorder in caucasians. individuals who are homozygous recessive for this trait have a defect of a membrane transporter protein. as a result, they have alterations in amounts of body fluids such as sweat and mucus; thickened mucus often leads to fatal lung infections. when scientists see that a fatal disorder is present in a population at a relatively high frequency, they suspect that there may be some benefit to the genes present. this benefit is called: group of answer choices

Which of the following represents the results of a review of well-controlled studies of vitamin c supplementation on the resistance to, and recovery from, colds? there was a reduction in the duration of colds by 50% on the average. there was a slight effect on reducing the duration and severity of colds for people taking vitamin c supplements. there was a significant reduction in the duration of colds in people who consumed at least one gram a day. there was a significant reduction in the number of colds only in people who consumed > three grams per day.

When trimming plants and vines: a. burn all the poisonous plants b. touch poison oak and poison sumac with your bare hands c. wear gloves d. cut as quickly as possible

The post exposure exam follow up must include counseling about the possible implications of the exposure and your infection status including the results and interpretation of all tests and how to protect personal contacts. the follow up must also include evaluation of reported illnesses that may be related to the exposure. what apse should you be provided with?