A genetic counselor is consulted by a young man who is worried about developing Huntington's disease, an inherited disorder caused by a dominant allele of a single gene. The young man explains that his cousin was recently diagnosed with Huntington's disease, and the news has caused him to consider his own risk of developing the disorder. Which of the following questions will best help the genetic counselor to evaluate the risk of the young man developing Huntington's disease and transmitting it to his children?

(A) Were you and your cousin born in the same geographical area?
(B) Were your parents or grandparents ever diagnosed with Huntington's disease?
(C) Were you in physical contact with a person diagnosed with Huntington's disease?
(D) Were you ever exposed to substances that are suspected of causing Huntington's disease?

Question

23-01-2020
Biology

contestada

A genetic counselor is consulted by a young man who is worried about developing Huntington's disease, an inherited disorder caused by a dominant allele of a single gene. The young man explains that his cousin was recently diagnosed with Huntington's disease, and the news has caused him to consider his own risk of developing the disorder. Which of the following questions will best help the genetic counselor to evaluate the risk of the young man developing Huntington's disease and transmitting it to his children?

(A) Were you and your cousin born in the same geographical area?
(B) Were your parents or grandparents ever diagnosed with Huntington's disease?
(C) Were you in physical contact with a person diagnosed with Huntington's disease?
(D) Were you ever exposed to substances that are suspected of causing Huntington's disease?

Respuesta :

Otras preguntas

How does the data from the 2021 McKinsey Global Survey support the central claim?A) The data highlights that the entire workforce must adapt to change.B) The da

Data privacy is of utmost importance to your organization, and this includes PHI and PII. As a security architect, you are tasked with protecting instant messag

A person might be diagnosed as suffering from bulimia nervosa if their episodes of binge eating and purging occur at least: ______

A Triangular distribution with parameters a=3, b=7, and c=5 will have an E[X] equal to... 1) 4 2) 6 3) none of the above

If the reaction tube is safe up to 0.5 MPa, what is the appropriate scale of the reaction (in mmol)? Show your work.

5. A teacher drew a line segment that was 20 inches long on the blackboard. She asked each of her students to estimate the length of the segment and used their

The web analytics metrics that measure how the users are using a website are categorized under which group of web analytics metrics? a. website usabilityb. traf

what are youth bulges directly linked to A) greater entrepreneurship B) economic recessions C) migration D) terrorism

Standard precautions need to be implemented only when you suspect a client has an infection.A. TRUEB. FALSE

Sofiyah1 Sofiyah1 · Answer 1 · 2020-01-24T11:06:03+01:00

Answer: B - Were your parents or grandparents ever diagnosed with Huntington's disease?

Explanation: In autosomal dominant disorder, affected offsprings must have an affected parent. Unaffected parents do not transmit the disease.

Since the disease is caused by a dominant allele, the young man would only be at risk of having Huntington's disease if his parents or grandparents had ever been diagnosed with the disease. He needs not to worry if his parents or grandparents had never been diagnosed with the disease.

His cousin who has been diagnosed with the disease could have inherited the allele from his other parent.