Cystic Fibrosis Is the Most Common Fatal Genetic Disease in North

question 47

Multiple Choice

Cystic fibrosis is the most common fatal genetic disease in North America and results in what type of allele located on chromosome 7?

• A) recessive
• B) dominant
• C) homozygous
• D) heterozygous
• E) polygenic

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Definitions:

Epilimnion

The epilimnion is the upper layer of water in a stratified lake, characterized by warmer temperatures and high levels of oxygen.

Hypolimnion

The colder, bottom layer of water in a stratified lake, lying below the warmer epilimnion.

Overturn

To upset or reverse a decision, situation, or setup, often dramatically.

Profundal Zone

A deep zone of a body of water where sunlight does not reach, typically found in lakes and often lacking in photosynthetic life.