Exam 4: Genetic Control of Cell Function and Inheritance

A physician is working with a family whose daughter has been recently diagnosed with the chromosomal disorder Turner syndrome. The physician would recognize that which of the following statements about the characteristics of human chromosomes is accurate?

A man and woman are eager to determine the sex of their unborn child and have asked the nurse at the fertility clinic how this is possible at an early stage of in vitro development. Which of the nurse's responses best captures the genetic rationale for early sex identification through tissue samples?

A student is explaining to her colleague the different methods that are available for genetic mapping. Which one of the colleague's following statements indicates a need for further teaching?

While discussing embryogenesis to a group of students moving through the maternity ward, the nurse quizzes them to see if they know what is happening during sonic hedgehog signaling. Which of the following answers would be considered accurate? Select all that apply.

A 45-year-old client who experienced exposure to radiation during an industrial accident several years prior is being assessed. Which of the following phenomena may underlie the genetic changes that have been noted in the client?

A student is trying to understand the possible reasons that a genetic abnormality might exist in an individual. Which of the following reasons is most plausible?

A child possesses a trait that is the result of the interaction of two different genes, neither of which could have produced the trait independently. Which of the following explanations best captures the genetic explanation for this?

A 31-year-old male has been newly diagnosed with early-onset Parkinson disease. As the nurse is educating the patient and family, they ask how this happened so early in his life. The nurse will base the response on which of the following statements listed below?

In the context of an explanation of how human growth occurs, a student is explaining to a colleague the necessity and roles of different types of RNA in protein synthesis. Which of the following types of RNA is a result of the process of transcription?

When educating the parents of an infant diagnosed with hemochromatosis, the nurse should consider which of the following topics a priority for the parents to know?

Knowing that persons with blonde hair exhibit the phenotype of a recessive gene, which of the following genetic scenarios would most likely underlie such a trait?

A researcher is involved in the production of insulin through recombinant DNA technology. Which of the following statements could the researcher best provide as a rationale for her work?

A health care researcher has identified the gene of interest in a particular genetic disorder as well as the gene's location Xq97. Where would one find a gene named Xq97?

While the nurse is educating a fellow nurse about some new research being developed to treat hepatitis C, specifically to identify disease-related drug targets on the cells, the nurse will be basing these data on which new technology finding?

A group of researchers have identified that the prevalence of two particular genetic disorders shares a statistical correlation. Which of the following statements best conveys the genetic rationale for this situation?

Mary is heterozygous for blue eyes, a recessive trait. John is homozygous for brown eyes, a dominant trait. What color eyes will their four children have?

A health care professional works in a context where there are a large number of clients who live with genetic disorders. Which of the following circumstances would most likely involve an individual who has a genetic disorder?

Which of the following patients are receiving treatment that has been developed utilizing recombinant DNA techniques? Select all that apply.

How could a health care professional most accurately explain an aspect of the underlying structure of DNA to a colleague who is unfamiliar with genetics?

A researcher is involved in the investigation of an individual's genetic abnormality. Which of the following situations could the researcher most likely rule out as the genetic cause of a mutation?