Question

is selective breeding a boon or a bane to the environment?

Answer 1

have been manipulating food crops- primarily through selective breeding- since ... Genetically modified crops can have a positive impact on the environment.

Answer 2

The mechanism called selective breeding is a boon to the environment.

Explanation:

In selective breeding technique, the breed of choice is chosen and it is mated with another breed to get a hybrid variety which may have genetic character of both breeds. While choosing the breeds, the selectors chose that type of phenotype which are considered as highly beneficial and produce hybrids out of it.

This mechanism can be used to come up with breeds which are disease resistant, can produce good yield etc.