Ayoung man knows that his grandfather had huntington disease (genotype hh). however, his father passed away at the age of 26 without ever being tested or showing signs of hd. his mother did not have huntington disease. what is the probability that this young man will develop hd when he is older?
a. 1/4
b. 1/2
c. 0
d. 1

1/4

Explanation:

The reason that the answer is 1/4 is because the young man, his grandfather, his father, and his mother equal 4 people. The young man is 1 person. 1 person/4 people = 1/4.

a motor homunculus represents a map of brain areas dedicated to motor processing for different anatomical divisions of the body.

homunculus represents the importance of various parts of your body as seen by your brain. as a result, they take up a lot of brain space. although the cortical homunculus is a curiosity, penfield's work in mapping the brain's relationship to the body was invaluable.

your answer should be c) enjoy!