Metabolism have good luck
Water, gravity, and light.
Temp causes water to rise or sink through convection, and salinity affects the density of the water, so higher salinity water will contribute to deep water currents
Genotypes: XX(75%), XhX(25%)
Phenotypes: normal
Their daughters won't get it because they would need to be homozygous for it and since the father is normal, it's not possible for them to inherit this from each parents and be homozygous (draw out a punnet square if ur confused). Hope this helps'