Abiology 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?
a. changes in genetics in human populations
b. antibiotic resistance in bacteria populations
c. pesticide resistance in garden insects
d. changes in the color of the peppered moth population in england

A.changes in genetics in human

Explanation:

The genetic change for a lot of reasons, and one is adapting to the environment but is through a lot of time, in different ways.

When we talk about bacterial resistance to an antibiotic, it is a transformation that happens in a couple of years or less.

The same happens with pesticides and bugs.

In the case of the peppered moth in England, they changed its color to camouflage when everything became black with coal dust in the first industrial revolution. That's a fast adapt to the new environment.

Option A, changes in genetics in human populations

Explanation:

There are several reasons which cause genetic changes in human being including the environmental changes. Hence option A , depicts a generic statement about genetic changes which is not primarily associated with " genetic changes caused by environmental factors".

However in all other options,  frequent/long time exposure of bacteria's with antibiotics,  garden insects with pesticides and moth with high pollution level in England had caused genetic variation due to environmental changes.

Hence, option A is a least supportive example

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