It would be true for most hiv if the person lacks ccr5 on the cells surface. but people with two copies of the ccr5-delta32 gene are basically immune to hiv infection.
I think the correct answer is C.
B.) 25%................................................................................................................................
With a severe twisting motion, a bone may sustain a spiral fracture or a torsion fracture. Spiral fractures are associated with a rotating force or a torque with energy enough to split or fracture the bone. This fracture is common to the pediatric age group, especially in school age children wherein accidents during jumping and running often produce this kind of injury.
