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ATI RN · Obstetrics and Pediatrics · Genetic Pediatric

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Showing all 5 practice questions with expert explanatory rationales.

Question 1 of 5

Which phase of the cycle is most likely to be interrupted for smaller abnormalities detection?

A. Metaphase

B. Prometaphase

C. S phase

D. G phase

Correct Answer: Prometaphase

Question 2 of 5

The study of chromosomes and cell division is called:

A. Cytogenetics

B. Cytology

C. Pedigree

D. Pleiotropy

Correct Answer: Cytogenetics

Question 3 of 5

Each cell in an individual with Down syndrome contains chromosomes:

A. 47

B. 22

C. 24

D. 45

Correct Answer: 47

Question 4 of 5

Chromosomal analysis reveals a 47,XYY karyotype. Which of the following descriptions best fits this abnormality?

A. Autosomal trisomy

B. A male with Klinefelter's syndrome

C. Sex chromosome aneuploidy

D. A female with Turner's syndrome

Correct Answer: Sex chromosome aneuploidy

Question 5 of 5

All the following are recognized associations in infant with Down syndrome EXCEPT

A. polycythemia

B. leukemoid reaction

C. neonatal jaundice

D. cataract

Correct Answer: cataract

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