Multiple Choice
Which of the following is TRUE of Down syndrome?
A) It primarily occurs in African-American children.
B) It occurs when genetic imprinting goes awry.
C) Its symptoms include retardation of motor and mental abilities.
D) It is caused by the presence of an extra copy of chromosome Y.
Correct Answer:

Verified
Correct Answer:
Verified
Related Questions
Q125: The _ is a layer of the
Q136: Sylvia is almost nine months pregnant and
Q137: Which is NOT true of the genome-wide
Q138: Mary and Jim are expecting a child,
Q139: _, the units of hereditary information, are
Q140: Which of the following is NOT accurate
Q142: Petra is at the fourth month of
Q143: Which of the following is TRUE about
Q145: Tracy's parents are avid sports fans. Since
Q146: Leslie is worried and distressed because her