A 5-year-old patient on the pediatric unit has been diagnosed ...

[Yolanda]

A 5-year-old patient on the pediatric unit has been diagnosed with an inherited disorder. The disorder is rare, and caused by a recessive trait. You understand that the patient has:
 
  a. Two dominant genes for the traitB. One dominant and one recessive gene for the traitC. Two recessive genes for the trait
 D. Both B and C

Question 2

Which of the following body structures is infected then a child has croup?
 
  a. epiglottis c. alveoli, bronchioles, and pleura
  b. lungs d. larynx, trachea, and large bronchi

[epscape]

Answer to Question 1

B
An inherited disorder caused by a recessive trait is caused by two recessive genes. A dominant gene would suppress the recessive gene. Two dominant genes cannot cause a recessive disorder.

Answer to Question 2

D

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A Incorrect. The epiglottis is not infected then a child has croup.
B Incorrect. The large bronchi of the lungs are infected then a child has croup, but not the entire lung.
C Incorrect. The alveoli, bronchioles, and pleura are not infected then a child has croup.
D Correct. Croup is a common viral syndrome manifested by a croupy or barking cough, inspiratory stridor, and some degree of respiratory stress. The syndrome is an infection of the larynx, trachea, and large bronchi, i.e., the upper respiratory system.

[Yolanda]

TYSM

[cpetit11]

Wow, this really help