George ross inherited from his mother. this is a group of hereditary bleeding disorders in which one of the factors needed to clot the blood is lacking.

Answer;

-Hemophilia

Explanation;

-Hemophilia is a rare disorder in which an individuals blood doesn't clot normally because it lacks sufficient blood-clotting proteins (clotting factors).

-Hemophilia is an X-linked genetic disorder, which means that it's passed from mother to son on the X chromosome. If the mother carries the gene for hemophilia on one of her X chromosomes, each of her sons will have a 50% chance of having hemophilia.

the major parts of the digestive system:

salivary glands.

pharynx.

esophagus.

stomach.

small intestine.

large intestine.

rectum.

accessory digestive organs: liver, gallbladder, pancreas.

the sugar-phosphate backbone forms the structural framework of nucleic acids, including dna and rna. this backbone is composed of alternating sugar and phosphate groups, and defines directionality of the molecule.