A physician is working with a family whose daughter has been ...

[BRWH]

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)
  Individual variations are attributable to differences in appearance in autosomes.
  B)
  Chromosomes undergo variations during each episode of cell division.
  C)
  Autosomes contain the determination of an individual's sex.
  D)
  Each of the 22 pairs of autosomes has a homolog.

Question 2

A 68-year-old male client with aortic stenosis secondary to calcification of the aortic valve is receiving care. Which of the following statements best captures an aspect of this client's condition?
 
  A)
  Paget disease, cancer with metastases, or excess vitamin D may have contributed to the problem.
  B)
  Increased calcium intake over time may have contributed to the problem.
  C)
  The client has possibly undergone damage as a result of calcification following cellular injury.
  D)
  The client has possibly exhibited phosphate retention leading to calcium deposits.

[Joc]

Answer to Question 1

Ans:
D

Feedback:

Each of the 22 autosomes contains a homolog in the diploid cell. Autosomes are consistent from individual to individual with regard to appearance. Chromosomes retain their integrity in cell divisions, and sex determination is found in the 23rd chromosome.

Answer to Question 2

Ans:
C

Feedback:

Dystrophic calcification is a result of deposition of calcium following cellular injury, such as that which commonly occurs in heart valves. Answers A, B, and D all refer to the phenomena associated with metastatic calcification and the associated increases in serum calcium levels.