1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Mashcka [7]
3 years ago
13

A genetic counselor is consulted by a young man who is worried about developing Huntington's disease, an inherited disorder caus

ed 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?
Biology
1 answer:
ExtremeBDS [4]3 years ago
7 0

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.

You might be interested in
HELP ME WITH THIS
melisa1 [442]

Answer:

true

Explanation:

7 0
3 years ago
Read 2 more answers
Which type of marine ecosystem supports the least life and why?
Liula [17]
Probably the intertidal zone, as I reason the tides would affect life dramatically. High and low tide would affect land and ocean creatures in this zone too often where as the coastal and open oceans have constant properties.
4 0
3 years ago
How do biological communities get to be the way they are?
Sophie [7]
Biological communities evolve through ecological succession. Ecological succession is the change in the structure and composition of species in a specific ecological community over time that can be observed. Ecological succession can occur as a natural process of time, or it can be instigated by a sudden event, a wild fire, for example. There are natural changes that occur that effect the species type and variation that exists and thrive in the communities.
8 0
3 years ago
Read 2 more answers
celery stalks that are immersed in fresh water for several hours become stiff and hard. Similar stalks left in a salt solution b
maxonik [38]

Celery stalks that are immersed in fresh water for several hours become stiff and hard. :333333

3 0
3 years ago
Which biome is defined as an area or region wheee more water movies from the land to the atmosphere than falls to the ground as
slamgirl [31]

Answer:

d

Explanation:

assuming you mean moves not movies, the rainforest has the most moisture so itll have the most precipitation

3 0
2 years ago
Other questions:
  • An automatic response to a stimulus is called a reflex. <br> a. True <br> b. False answers
    9·2 answers
  • Which two organ systems help provide materials that are necessary for cellular respiration? *
    8·1 answer
  • Ocean surface currents circulate in clockwise direction in the Southern Hemisphere.
    6·1 answer
  • Which of these events is an example of a primary disturbance in an ecosystem?
    13·2 answers
  • An arrangement of fascicles in concentric rings is called
    10·2 answers
  • To acquire iron as a critical nutrient, pathogenic bacteria _________. invade cells in order to access iron within degradative l
    14·1 answer
  • * What is one of the bigger problems of handwriting analysis? *
    12·1 answer
  • Which of the following astronomers was the first to propose elliptical orbits of the planets in our solar system?
    12·1 answer
  • HELP ASAP !!!!! I WILL GIVE POINTS. Complete the following sentence.
    5·1 answer
  • 16. Which of the following causes the brain to stimulate faster breathing?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!