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ATI RN · Obstetrics and Pediatrics · Pediatric Genetic

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Showing all 5 practice questions with expert explanatory rationales.

Question 1 of 5

The following diseases constitute the Chromosome Instability Syndromes - Ataxia telangiectasia - Fanconi anemia - Bloom syndrome - Xeroderma Pigmentosum: The following statements on the syndromes are correct EXCEPT:

A. Radiography must be used extensively as part of treatment

B. Genes associated with above syndromes usually are involved with DNA repair...

C. These genes may be viewed as caretaker tumor-suppressor genes

D. There is increased risk of malignancy (leukemia) for anyone affected...

Expert Explanatory Rationale

Correct Answer: Radiography must be used extensively as part of treatment

Question 2 of 5

Which of the following is the proper cytogenetic notation for a female with Down syndrome mosaicism?

A. 46,XX,+21/46,XY

B. 47,XY,+21

C. 47,XXX/46,XX

D. 47,XX,+21/46,XX

Expert Explanatory Rationale

Correct Answer: 47,XX,+21/46,XX

Question 3 of 5

Which of the following human triploid is possible to be found in adults:

A. 92, XXXY

B. Triploid cannot be found in adult human because it is incompatible with life

C. 23, XY

D. 92, YY

Expert Explanatory Rationale

Correct Answer: Triploid cannot be found in adult human because it is incompatible with life

Question 4 of 5

The proportion of babies that have an abnormality identifiable at birth is:

A. 1 in 10

B. 1 in 40

C. 1 in 100

D. 1 in 500

Expert Explanatory Rationale

Correct Answer: 1 in 40

Question 5 of 5

Which of these are thought to have anti-cancer benefits?

A. Heterocyclic aromatic amines (HAs)

B. Cruciferous vegetables such as broccoli

C. Red meats

D. Baked potatoes

Expert Explanatory Rationale

Correct Answer: Cruciferous vegetables such as broccoli

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