I think it might be the first one: hiv infections. (hope this helps!)
Answer:
1. genotype of female: Bb
a. genotype of male: bb
b. white is dominant
c. female phenotype: white
male phenotype: black
Ultraviolet sun rays it damages the cells and can cause skin cancer.
Photosynthesis is a process when the plants is absorbing sunlight to use the sunlight to make energy for them.
Photosynthesis equation :
6CO2 + 6H2O -> C6H12O6 + 6O2
Carbon dioxide + Water -> Sugar + oxygen