Select two reasons why Jenners method of vaccination was sup

Select two reasons why Jenner’s method of vaccination was superior to previous methods

a. It caused full blown disease in recipient

b. Potency of the inoculate was just enough to elicit an immune response

c. At least six booster shots were required

d. Inoculate is completely destroyed or neutralized by the host prior any immune reactions

Gives rise to red blood cells

a. Monocytes

b. Premature neutrophils

c. M cells

d. Common myeloid progenitor cells

Solution

1. The jenner\'s method of vaccination is a vaccination to eradicate cow pox. His method is superior to the previous ones because it carriers significant lower risks of a serious disease. The earlier method of using materials form the lesions of small pox victims conferred immunity but at risk of acquiring the potentially lethal disease. So, the correct answer is option B.

2. Monocyte give rise to macrophages. Premature neutrophils gives rise to neutrophils. M cells differentiate to form all Intestinal epithelial cells. Common myeloid progenitor cells give rise to Red blood cells. So, the correct answer is option D.