Hemophilia is a sex linked recessive trait which of the following describes the probability of hemophilia in the offspring of a man who does not have hemophilia and a woman who is a heterpzygous. carrier

None of their little girls will have hemophilia.Sex-connected qualities are just present on sex chromosomes. Hemophilia is a X-connected chromosome so a father who does not have hemophilia must give a non-hemophilia quality on the X chromosome he adds to his little girl. For a young lady to have a condition, both of her X chromosomes need to have the allele for that condition.

When you are making a guess you are forming a hypothesis

The proton has a positive charge while the neutron has no charge they both make up the nucleus of the atom while the elections have a negative charge and surround the nucleus of the atom. the protons and electrons are used to calculate the atom's mass whereas the neutrons don't affect the mass