ATI RN
Pediatric Genetic Disorders Questions
Question 1 of 5
Cancer cells are not:
Correct Answer: A
Rationale: Cancer cells lose contact inhibition (normal cells stop dividing when touching), enabling uncontrolled growth.
Question 2 of 5
The first step in FAP colon cancer usually involves mutation of the gene:
Correct Answer: A
Rationale: APC mutation is the initial event in FAP, leading to adenoma formation.
Question 3 of 5
The BRAC1 gene is involved in regulating:
Correct Answer: C
Rationale: BRCA1 (likely meant here) is a tumor suppressor involved in DNA repair, particularly double-strand breaks.
Question 4 of 5
Sporadic cancers result from:
Correct Answer: A
Rationale: Sporadic cancers arise from somatic mutations in an individual’s lifetime, not inherited.
Question 5 of 5
Which statement concerning a pair of alleles for a gene controlling a single characteristic in humans is true?
Correct Answer: C
Rationale: Diploid organisms inherit one allele from each parent for each gene.