Part of the amino acid sequences in normal and sickle cell haemoglobin are shown.
normal haemoglobin sickle cell haemoglobin
thr-pro-glu-glu thr-pro-val-glu
Possible mRNA codons for these amino acids are
glutamine (glu) GAA GAG proline (pro) CCU CCC
threonine (thr) ACU ACC valine (val) GUA GUG
Which tRNA molecule is not involved in the formation of this part of the sickle cell haemoglobin?
1 )
A
2 )
B
3 )
C
D
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