A Single,simple,recessively Inherited Mutation Inactivates the Enzyme That Converts Phenylalanine

question 26

Multiple Choice

A single,simple,recessively inherited mutation inactivates the enzyme that converts phenylalanine to tyrosine.Homozygous recessive individuals possess an excessive amount of phenylalanine and a deficiency of tyrosine.Additionally,these individuals may be mentally deficient,have abnormally light hair and abnormally light skin color.This disorder is an example of

• A)incomplete penetrance.
• B)incomplete dominance.
• C)polygenic inheritance.
• D)pleiotropy.

---

Definitions:

Decreased Percentage

A reduction in the ratio or fraction of a part in comparison to the whole, often expressed in terms of 'per hundred' (percent).

Traffic Accidents

Unforeseen events that occur on the road involving vehicles, pedestrians, or obstacles, leading to injury or damage.

Opioid Dependency

A physical or psychological reliance on opioids, a class of drugs often used for pain relief.

Whole Brain Death

A medical condition defined as the complete and irreversible cessation of all brain activity, used as a legal definition of death in many jurisdictions.