How social sciences same as science​

In addition to seeds, which of the following characteristics are unique to the seed-producing plants? a) sporopollenin b) lignin present in cell walls c) pollen d) use of air currents as a dispersal agent e) megaphylls

All individuals have two alleles for a given trait. according to mendel's these alleles are passed down one each from both mother and father.

What must be done to breed dogs for a partical trait