Phenylketonuria is an example of a genetic disease in which
A) a single enzyme is not functional.
B) inheritance is sex-linked.
C) two parents without the disease cannot have a child with the disease.
D) mental retardation always occurs, regardless of treatment.
E) a transport protein does not work properly.
Correct Answer:
Verified
Q2: _ is caused by a single base
Q3: Breaking and rejoining of chromosomes can lead
Q4: Newborn genetic screening for PKU
A) is very
Q5: Mutations of the gene for
Q6: Mutational "hot spots" in human DNA
A) always
Q8: The type of mutation that involves the
Q9: Most genetic diseases are rare because
A) each
Q10: Genetic diagnosis by DNA testing
A) detects only
Q11: In fragile-X syndrome,
A) females are affected more
Q12: In sickle-cell disease, one amino acid is
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