depends on what are you exposed to. Naturally, UV radiation does make mutations in the cells of your skin. Across the body, oxygen radicals make very significant amount of mutations; oxygen radicals are one of the important factors causing aging.
Apart from this, chemical mutagens from the environment are important mutagens too.
All of these cause mutations.
There are two main factors that cause a mutation in DNA. These factors include: the DNA fails to accurately copy itself and external influence cause a breakdown in the DNA.
Exposure to harmful environmental factors such as radiation, chemicals, or toxins is most likely to cause mutations in DNA. These factors can damage the DNA structure and lead to errors in the replication process, increasing the risk of genetic disorders or diseases in organisms.
Mutation .
A mutagen is a substance that has the potential to cause a mutation in the DNA.
A mutation in egg cells
during meiosis
A mutation that makes a rabbit able to run faster.
Although the cause of barbules to form on feather barbs doesn't sound like a difficult change in evolution, it would likely take more than just a single mutation for such an evolutionary change to occur. Most likely, it would take many mutations.
mutation
A frameshift mutation, such as an insertion of one nucleotide, is most likely to produce a protein with one extra amino acid. This type of mutation shifts the reading frame of the genetic code, leading to a change in the entire sequence of amino acids after the mutation site.
The two main factors are mutation and natural selection.Mutations are random changes in our DNA that cause changes. Some of these changes are bad, some are neutral, and some are good.This is where natural selection comes in. If the mutation is bad, then that organism is less likely to mate and pass down the gene. The organism dies along with the mutation that made it less fit. If it is neutral, which is what most mutations are, then nothing happens. If it is good, then the organism is more likely to survive and pass down the gene which will then propagate through the species.
The mutation theory is basically stating that mutation is one of the major factors that cause evolution. The mutation has to be a beneficial mutation, meaning that it has to help the survival of the organism that got the mutation. The mutation causes knew genes and diversity which can spread quickly throughout a population and eventually change the frequency of alleles (causes mutation) Remember the mutation has to be beneficial to the survival of the organism.