Author Question: During a visit to a geneticist's practice a patient with blue eyes asks the nurse to explain eye ... (Read 76 times)

humphriesbr@me.com · **on:** Jun 25, 2018

During a visit to a geneticist's practice a patient with blue eyes asks the nurse to explain eye color, adding that his mother had blue eyes and his father had brown eyes. What should the nurse include in this explanation?

Select all that apply.
1. You have two identical alleles that are responsible for your eye color.
2. The alleles that are responsible for your eye color are heterozygous.
3. Your eye color is the result of an expressed gene.
4. Alleles are forms of a gene.
5. Your eye color is just one part of your phenotype.

Question 2

While reviewing a male patient's history in the chart provided, the nurse becomes concerned. The patient states, I haven't been to see a physician in years, and it's time for me to get a thorough check-up.

Based on the nurse's understanding of genetically related diseases, which diagnostic screening examination may be ordered for this patient?

1. a mammogram
2. a prostate exam
3. a colonoscopy
4. a cardiovascular assessment

bbburns21 · **Reply #1 on:** Jun 25, 2018

Answer to Question 1

Correct Answer: 2, 3, 4, 5
This patient has a blue-eyed mother and a brown-eyed father, so the patient has two different forms of the gene responsible for his eye color. The patient's alleles are heterozygous. The patient's blue eyes are the result of an expressed gene. An expressed gene impacts the patient's outward experience. Alleles are versions or forms of a gene. The patient's eye color is part of his phenotype. The phenotype is the patient's entire physical, biochemical, and physiologic makeup and is influenced by genetic and environmental factors.

Answer to Question 2

Correct Answer: 4
This patient should receive a cardiovascular assessment. The patient has an increased risk of being diagnosed with a cardiovascular disease because the patient has two family members that were diagnosed with cardiovascular disorders that developed early, when compared to other people. This patient does not necessarily have an increased risk of breast cancer because the patient's mother was diagnosed with breast cancer after the age of 50. The patient does not have an increased risk of prostate cancer because the patient's uncle was diagnosed with prostate cancer after the age of 60. The patient does not have an increased risk of developing colon cancer because the patient's sister was diagnosed with colon cancer after the age of 50.