. Concave surface of mammalian R.B.Cs is helpful in
A. Formation of more haemoglobin
B. Increasing surface area of R.B.Cs
C. Reducing surface tension of plasma membrane
D. Providing more space for haemoglobin
Due to absence of nucleus, mammalian R.B.Cs become biconcave shape which help to accomodate maximum amount of haemoglobin.