Correct amino acid ( abbreviation from chart) formed from new mRNA sequence. Explanation of the mutation would not have any effect on the phenotype of the organism.

To determine the correct amino acid formed from a new mRNA sequence, we need to consult a chart or table that lists the codons and their corresponding amino acids. Without the specific mRNA sequence provided, it is not possible to identify the exact amino acid.

Regarding the mutation not having any effect on the phenotype of the organism, there are a few possible explanations:

1. Silent Mutation: The mutation could occur in a region of the DNA that does not affect the final protein sequence. For example, in some cases, multiple different codons can code for the same amino acid. So, a change in one codon to a different synonymous codon would not lead to any change in the amino acid sequence, hence no effect on the phenotype.

2. Conservative Mutation: The mutation could lead to the substitution of an amino acid with another one that has similar chemical properties, such as size or hydrophobicity. This type of mutation is unlikely to cause significant changes in the folding or function of the protein, and thus may not affect the phenotype.

3. Compensatory Mutation: The mutation could lead to changes in one amino acid, but the subsequent mutations in other parts of the protein sequence compensate for the change, ensuring that the overall structure and function of the protein remain intact. In this case, the mutation may not have any noticeable effect on the phenotype.

It's important to note that while a specific mutation might not have an obvious effect on the phenotype, it can still influence protein structure, protein-protein interactions, or regulation of gene expression, which could have subtle effects on the organism's functioning or survival under certain conditions.