This is possible if the mother does not carry that trait, or has a stronger trait for not carrying that melintin trait.
<h2>How does a missense mutation affect the function of a protein?</h2>
A missense mutation will change the amino acid sequence. This may alter the function of the protein, usually negatively, but sometimes positively. This later case may be favored by evolution, as the change is heritable.
Prokaryotic cells do not have a nucleus, animals cells have a nucleus and plant cells have a nucleus. Animal cells and plant cells are both eukaryotic.