This is false. Naive T cells undergo seletion before maturation. Those bind to MHC on APC can survive and mature.
My meiosis consist of one stage where as mitosis consist of two stages.mitosis produces diploid cells where as meiosis produces haploid cells
Alternating sugar and phosphate molecules form the sides or "backbone" of the DNA molecule
Hope this helps!
Geology. Geology is <span>the science that deals with the earth's physical structure and substance, its history, and the processes that act on it.</span>
Answer:
100 percent of ticks on mice were infected with B. burgdorferi.
Explanation:
Ticks become infected with B. burgdorferi if they feed on mice or other host infected with B. burgdorferi. B. burgdorferi is a type of harmful bacteria which is responsible for a disease called Borreliosis. It is also known as Lyme disease. It is mostly occurs from the biting of ticks infected by B. burgdorferiy. All the mice contains B. burgdorferi so 100 percent of ticks were infected by B. burgdorferi.