A couple hopes to be parents but are concerned that their child could end up with cystic fibrosis, as both of them have family histories of cystic fibrosis (CF).Neither exhibits symptoms of CF, but CF is a recessive disease, so they get the CF test done.This scenario presents an example of

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The scenario describes genetic screening, as the couple is getting tested to determine their carrier status for cystic fibrosis, a recessive genetic disease. This screening can help them assess their risk of having a child with CF and make informed decisions about their reproductive options. Phenotypic screening (A) involves looking for visible physical or behavioral characteristics in an individual to identify a particular condition, which is not applicable in this scenario. Prenatal screening (C) involves testing a fetus for health conditions during pregnancy, which is not mentioned in the scenario. DNA linkage analysis (D) involves mapping the location of disease genes on chromosomes, which is also not applicable in this scenario. DNA transfection (E) involves the introduction of foreign DNA into a cell, which is not relevant to this scenario.

A Couple Hopes to Be Parents but Are Concerned That