Biology · Genetics
Consider the combinations of Clinical Syndrome, Karyotype, Chromosome Formula, and Estimated Frequency at birth: (A) Down Syndrome: 47, +13 ; 2n + 1 ; 1/20,000 (B) Patau Syndrome: 47, +21 ; 2n + 1 ; 1/2,000 (C) Edward Syndrome: 47, +18 ; 2n + 1 ; 1/8,000 (D) Klinefelter Syndrome: 47, XXY ; 2n + 1 ; 1/500 male births Which of the above statements are correct?
- 1(B), (C) and (D) only
- 2(A), (B), (C) and (D)
- 3(C) and (D) only✓
- 4(A), (B) and (D) only
Correct answer
(C) and (D) only
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