Questions about Evolutionism vs. Creationsim

[Anomalocaris]

Once a gene is mutated, doesn't it lose genetic information though?

There's no reason to think so.  Polydactyly (extra fingers or toes) is the result of a mutated gene (in some cases, genes) and is a net increase of information - it takes more bits to describe six fingers than it does five.

Boru

Making more toes does not imply the genes needs more information. Think of a do loop regulated by a counter.  It doesn't necessarily take more information to change how many times the loop iterates before stopping. This is analogous to the digit forming process in embryo development.

There is one set of gene which describe the fundamentals of how to make digits for both the hands and feet, and a different set of genes which regulate the manner and frequency with which the digit forming genes are expressed in embryo development.   In most people t, the digit forming gene is allowed to be expressed 5 times on each limb, resulting in 5 fingers and toes at early stage in embryo development.   In some people, the regulating genes are mutated.   This can lead to the same digit forming genes being expressed a different number of times, leading to those born with fewer or more digits on their hand and feet than is normal.