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Type: Multiple-Choice
Category: DNA, RNA, and Genetics
Level: Grade 12
Author: sackjd
Last Modified: 6 years ago

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DNA, RNA, and Genetics Question

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Grade 12 DNA, RNA, and Genetics

Phenylketonuria (PKU) is an inherited disease that is recessive in origin. If a couple, who are both carriers, have three children, what is the probability that all three children are of normal phenotype?
Table 2x2
  1. 3/64
  2. 5/64
  3. 18/64
  4. 27/64