Question

which is a potential negative consequence of using genetically engineered medicine?
○ gene markers that are resistant to antibiotics are used, providing the possibility for humans to have increased antibiotic resistance.
○ products that are used to genetically engineer medicine are poisonous.
○ restriction enzymes are used to create the medicine and have been known to cause cancer.
○ medicine that is created this way is less effective than medicine that is created the traditional way.

Explanation:

• Analyze Option 1: Using antibiotic - resistant gene markers in genetically engineered medicine can transfer resistance genes, increasing human antibiotic resistance. This is a valid concern.
• Analyze Option 2: The products used in genetic engineering of medicine are not inherently poisonous.
• Analyze Option 3: Restriction enzymes are used in genetic engineering but are not known to cause cancer.
• Analyze Option 4: Genetically engineered medicine is often as or more effective than traditional medicine.

Answer:

A. Gene markers that are resistant to antibiotics are used, providing the possibility for humans to have increased antibiotic resistance.