Question
Biology Question on body fluids and circulation
Erythropoiesis starts in
A
spleen
B
red bone marrow
C
kidney
D
liver.
Answer
red bone marrow
Explanation
Solution
Erythropoiesis is the formation of red blood cells (erythrocytes) which occurs in the red bone marrow. Proerythroblast is the earliest precursor which gives rise successively to the early erythroblast, intermediate erythroblast and late erythroblast. Then, the nucleus is forced out and a biconcave, enucleated cell called | reticulocyte is formed, which is released into blood. In blood, it develops into mature erythrocytes.