What is a characteristic of an autosomal dominant disorder?
The disorder skips generations.
Only women are carriers.
The disorder is only present during childhood.
There are no carriers.
The Correct Answer is D
Rationale:
A. Autosomal dominant disorders do not typically skip generations. If a parent carries the dominant allele, there is a 50% chance of passing it to each child, so the trait usually appears in every generation. Skipping generations is more characteristic of autosomal recessive disorders, where individuals can be carriers without showing symptoms.
B. Autosomal dominant disorders affect both males and females equally, because the gene is located on an autosome (non-sex chromosome). There is no sex-specific pattern of inheritance.
C. Autosomal dominant disorders can manifest at any age, depending on the specific condition. Some, like Huntington disease, appear in adulthood, while others, such as Marfan syndrome, may be evident at birth or in early childhood.
D. In autosomal dominant disorders, an individual with one copy of the mutated gene will express the disorder, meaning there are no asymptomatic carriers. Each affected person shows signs of the disease, even if symptoms are mild. Carriers, by definition, are asymptomatic individuals with a recessive allele, which does not apply in dominant disorders.Top of FormBottom of Form
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Rationale:
A. Apples are generally considered low-allergen foods. While some individuals may have oral allergy syndrome related to pollen-food cross-reactivity, apples are not among the most common food allergens.
B. Shrimp is a shellfish, which is one of the major common food allergens. Shellfish allergy can trigger severe allergic reactions, including urticaria, angioedema, gastrointestinal symptoms, or anaphylaxis. Shellfish allergies are lifelong in most cases and are more common in adults than children.
C. Chicken is rarely a cause of food allergy. Most individuals can tolerate cooked chicken without immune reactions. It is not listed among common allergens.
D. Rice is generally considered hypoallergenic and is rarely associated with allergic reactions. It is often recommended as a safe food for infants or people with food sensitivities.
Correct Answer is C
Explanation
Rationale:
A. This describes a local infection, where the pathogen affects only one specific area, such as a skin abscess or localized wound infection. Symptoms are limited to that area.
B. This describes a subclinical or latent infection, where the pathogen is present but does not produce noticeable symptoms. It is not systemic because it does not actively spread to multiple sites.
C. A systemic infection involves the spread of pathogens or their toxins through the bloodstream or lymphatic system to multiple organs and tissues. Examples include sepsis, bacteremia, or viral infections like influenza that affect multiple organ systems. Systemic infections often cause fever, malaise, hypotension, and widespread inflammation.
D. This describes a polymicrobial infection, which can be local or systemic depending on spread, but having multiple pathogens at one site does not define systemic infection.
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.