Evolution & Mutations

When do mutations become significant for evolution? Well, this question isn’t easy to answer as many different mutations can happen over generations. For example, we can see somatic mutations that may affect individual survival, point mutation that leads to a substitution of a different nucleotide, or even silent mutations where there is no effect. With there being many different factors that can influence mutations and can become significant like cancer.

Some factors that influence mutation rates is replication & repair processes, environmental factors like diseases or carcinogens, and genomic factors being eukaryotic or prokaryotic.

These rates is something that people focus on a ton, because every day, we are exposed to them or even eating them. Now, I’m not telling you that you have to only eat certain foods, but rather being aware of them can be crucial to some. Regardless, I won’t tell you what not to eat, I’ll always eat my red meat covered in salt and fried in butter (as pictured below)

Figure 1 – Shows some buttery steak with potatoes and cucumbers

However, mutations can come to either be a benefit or a cost to an organism which can influence their survival. This can be seen through many different organisms like Lactase Persistence where it allows adults to digest milk (I’m sorry to those who can’t have milk) or even antibiotic resistance in bacteria. We can see that the antibiotic resistance will benefit the organism as they will be able to persist in environments of antibiotics.

Now evolution and mutations go hand in hand with each other as we see evolution being the change of allele frequencies which is usually seen through a mutation.

My personal experience that I have seen with mutations is cancer, most of my family has gone through some type of cancer and since then, the trait is still being passed on. This mutation is a somatic mutation as discussed before, but thankfully, my family has survived through this traumatic mutation of their DNA. This is very eye opening to see as some mutations are not actually beneficial, but they are harmful.

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