Q. 55.0( 4 Votes )
In sickle cell anaemia glutamic acid is replaced by valine. Which one of the following triplets codes for valine?
A. G GG
B. A A G
C. G A A
D. G U G
GUG is the triplet that codes for valine.
In sickle cell anaemia the Glutamic acid (Glu) is substituted by Valine (Val) at the sixth position of the beta globin chain of haemoglobin molecule. That is a single base substitution at the sixth codon of beta globin gene from GAG to GUG.
Rate this question :
A hemophilic father can never pass the gene for haemophilia to his son. Explain.Biology - Board Papers
Why is the frequency of red-green colour blindness is many times higher in males than that in the females?Biology - Exemplar
The pedigree chart given below shows a particular trait which is absent in parents but present in the next generation irrespective of sexes. Draw your conclusion on the basis of the pedigree.
Biology - Exemplar