What Genetic Disorder Is Associated with the Lack of an Enzyme

question 32

Multiple Choice

What genetic disorder is associated with the lack of an enzyme necessary for the normal metabolism of the amino acid phenylalanine?

• A) phenylketonuria (PKU)
• B) Marfan syndrome
• C) Huntington disease
• D) sickle cell disease
• E) cystic fibrosis (CF)

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Definitions:

Coral Reefs

Coral Reefs are diverse underwater ecosystems held together by calcium carbonate structures secreted by corals, home to numerous species of plants, animals, and microbes.

Species Native

Refers to species that occur naturally in a given area or habitat without human introduction.

Zebra Mussels

Invasive freshwater mussels native to Eurasia, known for their rapid population growth and detrimental impacts on water infrastructure and native ecosystems.

Dandelions

A common and widespread flowering plant of the genus Taraxacum, known for its bright yellow flowers and distinctive seed heads.