Which statement is true regarding the genetic transmission of Duchenne muscular dystrophy (DMD)?
DMD involves multiple gene expression.
DMD is an X-linked recessive disorder.
DMD is autosomal dominant.
No carrier states exist for DMD.
The Correct Answer is B
Rationale:
A. DMD is caused by mutations in a single gene (DMD gene), not multiple gene expressions.
B. DMD is an X-linked recessive disorder, primarily affecting males. Female carriers usually do not show symptoms but can pass the mutated gene to their offspring.
C. Autosomal dominant disorders affect males and females equally and only require one mutated gene. DMD does not follow this pattern.
D. Carrier states do exist—typically in females—who can pass the defective gene to children without showing full-blown symptoms themselves.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["A","E"]
Explanation
Rationale:
A. Removing clothing over the rash helps eliminate any remaining irritant oils from the plant, which can prevent further skin exposure.
B. Contact dermatitis from poison ivy is not contagious; isolation is unnecessary.
C. Heat exposure can worsen inflammation and itching. It is not a recommended treatment.
D. Hydrogen peroxide can further irritate the skin and is not appropriate for cleansing poison ivy rash. Mild soap and water are recommended.
E. Calamine lotion helps soothe itching and provides relief from discomfort caused by the rash.
Correct Answer is A
Explanation
Rationale:
A. Treatment for congenital clubfoot should begin as soon as possible after diagnosis, often within the first few weeks of life. Early intervention improves the likelihood of successful correction with non-surgical methods like casting (Ponseti method).
B. Waiting until 4–6 months delays treatment, which can lead to worsening deformity and more complex interventions.
C. While treatment should be completed before walking begins, starting at 9–12 months is too late to begin initial correction.
D. Treating after walking is established is not ideal and often requires more invasive procedures due to fixed deformity.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.