In humans, a rare blood disoder (Blood Disorder X), which only affects people with sickle cell anemia and blood type B, has been discovered. 2 people are expecting their
first child. One parent has sickle cell anemia and blood type AB. The other is a carrier of
sickle cell anemia and also has blood type AB. What are the chance their child will be at
risk for the blood disorder X? *sickle cell is not sex-linked.

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 !