The Advantage of Being Able to Clone the Gene for Human

question 7

Multiple Choice

The advantage of being able to clone the gene for human insulin is that

• A) there are too few cows, pigs, and horses to provide an adequate supply of their insulin.
• B) human insulin is less likely to cause harmful side effects than cow, pig, or horse insulin.
• C) cow, pig, or horse insulin cannot keep a diabetic alive for more than 3 months.
• D) using human insulin increases the probability that, in the future, the person suffering from diabetes can be weaned from a dependence on insulin.

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Definitions:

Three-Layered Embryo

Also known as the gastrula, it refers to an early stage in embryonic development where the embryo consists of three primary layers: ectoderm, mesoderm, and endoderm.

Organogenesis

The phase during embryonic development when the ectoderm, endoderm, and mesoderm develop into the internal organs of the organism.

Embryonic Development

The process by which the embryo forms and develops, starting from a single cell and leading to a complex, multi-cellular organism.

Archenteron

The primitive gut formed during early embryonic development in animals, from which the digestive tract eventually develops.