<h2>
Answer:</h2>
Mutations lead to new genes, which may have an advantage over the old forms, causing the species to evolve.
<h2>
Explanation:</h2>
Mutation assumes a significant job in evolution. A definitive wellspring of all hereditary variety is a mutation. It is significant as the initial step of development since it makes another DNA succession for specific quality, making another allele.
Recombination additionally can make another DNA succession (another allele) for a particular quality through intragenic recombination. Mutation going about as a developmental power independent from anyone else can possibly cause huge changes in allele frequencies over exceptionally significant stretches of time.
To find the average they also take into account the salary of the president, who probably makes a lot more than $20,000.
The answer is 2/4 (B) because in a Punnett Square, a male parent and female parent’s X chromosomes cross together 2 times and with a Y chromosome 2 times. This makes it probably that, out of the 4 squares, 2 of those squares will be female. sorry