Topic 7.3 - Artificial Selection 𖦹⋆｡°✩ Flashcards
what is artificial selection
the process by which humans select desirable traits in other species and selectively breed individuals with the desired traits
where is artificial selection commonly used
in agricultural and economic practices
what are some examples of artificial selection
༻ growing certain crops with specific characteristics
༻ breeding certain animals for sport/sale
what can artificial selection result in
༻ phenotypes that would not normally exist in nature
༻ can lead to more OR less genetic diversity
how does artificial selection work
humans pick a trait that is desirable and choose it to breed individuals with that trait to get the desired outcome
how can artificial selection impact genetic diversity
genetic diversity can change overtime because the same traits that are selected are becoming more and more common
what is convergent evolution
the process by which similar environmental conditions select for similar traits in different populations or different species over time
where can similar traits be observed
in distantly related or unrelated species
what are analogous structures
features of different species that are similar in function but not necessarily in structure and which do not derive from a common ancestral feature
what is an example of analogous structures
the selective pressure of similar aquatic environments can select for streamlined bodies in vertebrates (ex. in fish and mammals)
