Genetic Inheritance Patterns

00:00 1 marks

Phenylketonuria (PKU) is caused by a recessive allele. If two parents are heterozygous carriers for PKU, what is the probability that their child will have PKU?

A

0%
B

25%
C

50%
D

75%

Hint Hint

Hint

Draw a Punnett square for two Pp parents and count the pp genotype.

Answer Answer
Mark Scheme Mark Scheme
Explanation Explanation
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Answer Answer

Complete Answer

25%

Mark Scheme Mark Scheme

Answer Explanation Answer Explanation

Examiner Tips Examiner Tips

Common Errors Common Errors

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