Question

a biology teacher asks students to give examples of genetic variations that support the idea that changes in a population’s environment affect genetic variation. which is the least supportive example?
changes in genetics in human populations
antibiotic resistance in bacteria populations
pesticide resistance in garden insects
changes in the color of the peppered moth population in england

Explanation:

To determine the least supportive example, we analyze each option:

• Antibiotic resistance in bacteria: Occurs due to environmental pressure (antibiotics), driving genetic variation.
• Pesticide resistance in insects: Environmental pressure (pesticides) selects for resistant genetic traits.
• Peppered moth color change: Industrial pollution (environment) caused genetic variation in color for camouflage.
• Changes in human genetics (general): This is vague and does not directly link a specific environmental change to genetic variation, unlike the other options which have clear environmental triggers (antibiotics, pesticides, pollution).

Answer:

A. changes in genetics in human populations