Answer: Missense mutation
Explanation:
Missense mutation is a type of point mutation where a single nucleotide is changed to cause substitution of a different amino acid. This in turns render the resulting protein non-functional.
In the case of sickle-cell disease, the sixth amino acid in the gene sequence, glutamate (GAG) is substituted with valine (GUA), due to Adenine nucleotide changed to Uracil nucleotide. Thus, missense mutation has occurred
According to Evans-Pritchard, Azande commoners did not accuse chiefs of witchcraft because w<span>itches bewitch people they envy, and chiefs do not envy commoners.
There was no reason for chiefs to envy commoners and be jealous of what they have, because usually they had much more than the commoners. There wasn't much for them to envy, and thus to turn to witchcraft, according to the commoners in these tribes.
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The function of the nucleolus is: D. Assembly of ribosomes.
The function of the nucleolus is to transcribe DNA into ribosomal RNA and assemble RNA into ribosomal subunits. The creation of RNA is important because RNA makes up ribosomes which are responsible for protein synthesis in the cell.