The disease  sickle-cell anaemia is caused by the substitution of `overset("(i)") "____
Channel: Doubtnut
Date: 2020-08-16

The disease  sickle-cell anaemia is caused by the substitution of `overset("(i)") "____"` by `overset("(ii)") "____"` at the `overset("(iii)") "____"` position of `overset("(iv)") "____"` globin chain  of haemoglobin molecule Which of the following correctly fills the blanks in the above statements ?