Question

why is it beneficial to use a gene that is expressed in milk - producing mammary glands as a way to produce therapeutic drugs?

• milk is easier to access than blood.
• mammary glands produce proteins in relatively small quantities.
• other genes use alternative mechanisms to produce proteins.
• milk allergies are rare.

Explanation:

Using mammary gland-expressed genes for therapeutic drugs leverages milk as a readily obtainable fluid. Unlike blood, milk collection is non-invasive and simpler, making it a practical source for harvesting the produced therapeutic proteins. The other options are incorrect: mammary glands produce proteins in large quantities (not small), alternative protein production mechanisms of other genes are irrelevant, and milk allergies do not relate to the benefit of using mammary gland expression for drug production.

Answer:

A. Milk is easier to access than blood.