Question

which of the following is an example of an informal definition?
merriam websters dictionary defines genetics (noun) as \the scientific study of how genes control the characteristics of plants and animals.\
geneticist j.b.s. haldane makes an interesting point: \i am quite sure that our views on evolution would be very different had biologists studied genetics and natural selection before and not after most of them were convinced that evolution had occurred.\
genetics - that is, the genes youve inherited - may play a role in how your ears react to loud sounds.
the use of genetics is often applied in studies of plant species and improvement. horticulturalists aim to breed disease - resistant plants by changing their genetic traits. genetically modified plants are controversial as sources of food crops.

Explanation:

An informal definition is a non - technical, everyday language description. The option "Genetics - that is, the genes you've inherited - may play a role in how your ears react to loud sounds" uses simple, non - scientific language to explain genetics in relation to ear reaction, which fits the concept of an informal definition. The other options are more formal or scientific explanations.

Answer:

Genetics - that is, the genes you've inherited - may play a role in how your ears react to loud sounds.