In HIV-infected patients, there is a gradual loss of CD4+ T cells over time. These cells, also called T helper cells, organize the immune system's attack on disease-causing invaders, like Salmonella.
A. Alice carried the recessive allele
No, and the environment also adds on to influencing traits.
Hope this helps. If not, I apologize.
Answer:
11) A. The optimum pH of an enzyme is 6.6
12) C. A control group
I believe it would be c not exactly sure tho
