Both couple 1 Mother and Father are carriers of hemophilia, meaning there is a dominant allele suppressing the expression of hemophilia. Their child got 1 hemophilia allele from Mother and another from Father, resulted in 2 hemophilia alleles. Hemophilia will then be expressed in their child.
Couple 2 Father has hemophilia, but Mother does not, resulting in the child attaining one hemophilia allele from Father and one normal allele from Mother. The normal allele suppresses hemophilia from being expressed.
Hope this helps! :)
