DNA Technology Has Many Medical Applications

question 24

Multiple Choice

DNA technology has many medical applications. Which of the following is not done routinely at present?

• A) production of hormones for treating diabetes and dwarfism
• B) production of microbes that can metabolize toxins
• C) introduction of genetically engineered genes into human gametes
• D) prenatal identification of genetic disease alleles
• E) genetic testing for carriers of harmful alleles

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Definitions:

Simple Squamous Epithelium

A solitary layer of flattened cells lining areas engaged in diffusion and filtration, including blood vessels and lung air sacs.

Keratinized Epithelium

A type of epithelial tissue that has become hardened or cornified through the incorporation of keratin, often found in the outer layers of the skin, hair, and nails.

Squamous Epithelium

A type of epithelial tissue composed of flat, scale-like cells found in various body sites, including the skin and lining of body cavities.

Stratified Epithelium

A type of epithelial tissue composed of multiple layers of cells that serves as a protective barrier on the body's surfaces.