Praxis 5511 Practice Test Practice Question
Which of the following is commonly used to detect chromosomal abnormalities?
Correct Answer: C
Rationale: Amniocentesis is a procedure that involves extracting amniotic fluid to analyze fetal cells for chromosomal abnormalities, making it a direct method for genetic testing.
Electrocardiograms (A) are used to assess heart activity and cannot detect chromosomal issues. Magnetic resonance imaging (B) provides detailed images of internal structures but does not analyze chromosomes. X-rays (D) are primarily used for imaging bones and tissues, not for genetic testing. Thus, amniocentesis stands out as the appropriate choice for identifying chromosomal abnormalities.
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