First, pre-messenger RNA is formed, with the involvement of RNA polymerase enzymes.
Answer:
Sickle Cell and Thalassemia are similar because they are both genetic disorders and are both caused by errors in the genes for hemoglobin, a substance composed of a protein
Explanation:
As the plasma cells begin secreting antibody, the antibody titer begins to rise. Eventually , the primary response will make an immune memory of the antigen.
IgM is not the first class of antibody which appear on the surface of developing B cell. It is the major class which secreted into the blood in the blood int he early stages of primary antibody response, which expose to antigen. Primary antibodies occur during the first encounter with virus.
All adaptive immune responses develop in steps, which consisting antigen recognition, activation of specific lymphocytes to proliferate , with the memory cells being the long live survivor.
To learn more about plasma cells here
brainly.com/question/1578184
#SPJ4
Answer:
The travel between the Old and the New World was a huge environmental turning point, called the Columbian Exchange. It was important because it resulted in the mixing of people, deadly diseases that devastated the Native American population, crops, animals, goods, and trade flows.