Selective Breeding (GCSE Biology)

What does “selection pressure” mean in the context of selective breeding?

A plant breeder selects parent plants that flower early to produce offspring that also flower early. Which term best describes the trait “flowering time” in this context?

Which is an ethical concern commonly discussed about selective breeding in pets?

Which statement best distinguishes selective breeding from genetic modification (GM)?

Why might a plant breeder use controlled crosses rather than allowing plants to self-pollinate?

When selective breeding is used to increase resistance to a specific disease, what long-term risk should breeders monitor?

A breeder wants to increase milk yield in a herd. Which strategy would be an example of artificial selection?

A breeder wants offspring that are consistently medium-sized rather than extremely large or small. Which selection method should be used?

Which pair of parents would a breeder choose to produce offspring that are likely to show hybrid vigour?

Which observation would best show that a selective breeding program is effective after several generations?

Which practice helps reduce the risk of inbreeding depression in a closed breeding population?