Which statement concerning preimplantation genetic screening (PGS) is false?
A. It is usually used with couples known to be at risk for genetic disorders.
B. It cannot be used to determine if a child-to-be is male or female.
C. If parents are not pleased with the test results, they can have a fertilized egg discarded.
D. It can be used to determine a child-to-be's hair color.
Answer: B
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Sara is a pregnant woman who is well past her due date, which was three weeks ago. The doctors decide that they must induce labor in Sara and inject her with _____
A) oxytocin B) vasopressin C) melatonin D) thyroxin
Based on the fact that stimulant medications have been used effectively to treat ADHD, it is believed that the disorder may be caused by ____
a. inadequate levels of acetylcholine in the central nervous system b. an excess of serotonin in the central nervous system c. an excess of norepinephrine in the central nervous system d. inadequate dopamine and associated neurotransmitters that affect sign-flow to and from the frontal lobes
Bartlett's experiment in which English participants were asked to recall the "War of the Ghosts" story that was taken from the French Indian culture illustrated the
a. misinformation effect. b. familiarity effect. c. constructive nature of memory. d. reminiscence bump.
Macular degeneration is an eye disease that causes vision loss at the center of vision, leaving peripheral vision unaffected. Given what you know about eye anatomy, which part of the eye is most likely affected by macular degeneration?
A. Fovea B. Lens C. Cornea D. Pupil