Hunter syndrome is a progressively debilitating recessive disorder that is inherited on the X chromosome.

A father without Hunter syndrome and an unaffected carrier mother have a child.
Which of the following statements is true?

Choose 1

(Choice A)
A
They have a 50% chance of having an affected daughter.

(Choice B)
B
They have a 100% chance of having an affected son.

(Choice C)
C
All of their children will be unaffected carriers.

(Choice D)
D
No daughter they have will be affected.

Scientists are conducting a study on the effectiveness of a new drug on memory loss. they are giving some of the test subjects the new drug to find out if it improves their long-term memory. which are possible limitations of this study? check all that apply. a) test subjects may want to participate in additional experiments. b) test subjects may think they should be paid more. c) test subjects may get bored and want to quit early. d) test subjects may have to travel during the experiment. e) test subjects may have full-time jobs. this is multiple choice. you for the !