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Question
Which of the following is NOT listed as a major purpose for developing transgenic animals?
Options
To increase the natural lifespan of animal species beyond their evolutionary limits
To understand the causes and progression of diseases such as cancer and Alzheimer's disease
To study normal physiology and development by observing how genes control body functions
To produce important biological products such as therapeutic human proteins
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Solution
The major purposes for developing transgenic animals include studying physiology and development, understanding disease progression, producing biological products, testing vaccine safety, and conducting chemical safety testing. Increasing natural lifespan beyond evolutionary limits is not listed as a major purpose. The established purposes focus on research, medical applications, and product generation rather than lifespan extension.
