Which of the Following Genetic Disorders Is Due to a Lack

question 34

Multiple Choice

Which of the following genetic disorders is due to a lack of the lysosome enzyme hex A?

• A)cystic fibrosis
• B)Tay-Sachs disease
• C)Huntington disease
• D)sickle-cell disease
• E)Marfan syndrome

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Definitions:

Recessive Genes

Genes that are not expressed in the phenotype unless two copies are present, one from each parent.

Dominant Gene

A gene that expresses its phenotype in the presence of another allele, overshadowing recessive genes when only one copy is present.

Anterior Pituitary

The front portion of the pituitary gland, which secretes hormones that regulate a wide range of bodily functions, including growth and reproduction.

Aroused

The condition of being alert, awake, or stimulated, which can refer to physical, emotional, or sexual stimuli.