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Mutations are usually anomalies in the sequence of a particular strand of DNA. The change is the sequence can be of various kinds and their individual effects vary. Sometimes mutations occur but they are never expressed. In such cases, on the whole, the mutation has had no impact.

Changes in a single nucleotide can change the reading frame for protein coding regions and can cause misreading of the genetic code. For example, nonsense mutations caused by the exchange of a nucleotide leading to a stop codon can cause truncation of a protein. On the other hand, we can have silent mutations which show no effect because the nucleotide that has been exchanged does not cause change in amino acid sequence. So this would be an example of a mutation which shows no effect.

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Q: What are the impact of mutations and how mutations can have no impact?
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Related questions

How do chromosome mutations affect an individual?

Chromosome mutations can result in changes in the number of chromosomes in a cell or changes in the structure of a chromosome. Unlike a gene mutation which alters a single gene or larger segment of DNA on a chromosome, chromosome mutations change and impact the entire chromosome.


Why do mutations that occur in the skin or nervous system tend to have little effect on the evolution of a species?

Most mutations that occur have a neutral effect, or none at all, so they would not affect evolution. Organisms with mutations that cause detrimental impact typically will not survive; therefore, they will not reproduce, and the mutation will not be passed on, so the species will not be affected overall. Beneficial mutations are typically the only mutations that will affect an organism's posterity and the evolution of its species, but good mutations are very rare. This is why most mutations have little effect on the evolution of a species.


What can cause changes in DNA sequences?

mutations


How do mutations impact patters of inheritance?

they can be neutral and have no effect, improve a protein and be beneficial, result in a protein that does not work, which may cause disease


What are three main ways that variations in genotype arise in population?

Variations occur due to mutations. There are three factors of mutations which impact the formation of new genotypes. 1) Point Mutations - Very small impact mutation which still might enhance the protection against environment and reproduction. 2) Mutations that alter Gene number and sequence - has major role in evolution as it might help to add new functions. 3) Mutation Rates - In animals and plants mostly very slow, however, prokaryotes due to high rate are able to mutate very fast.


What are three main ways that variations in genotype arise in a population?

Variations occur due to mutations. There are three factors of mutations which impact the formation of new genotypes. 1) Point Mutations - Very small impact mutation which still might enhance the protection against environment and reproduction. 2) Mutations that alter Gene number and sequence - has major role in evolution as it might help to add new functions. 3) Mutation Rates - In animals and plants mostly very slow, however, prokaryotes due to high rate are able to mutate very fast.


Changes in DNA are called mutations?

the answer is mutations.......................


Are all mutations bad.?

No not all mutations are bad there are good mutations and bad mutations


How do you spell mutations?

mutations


Genetic information is alterd when changes in the DNA sequence is called?

It is called mutations. I'm 100% sure.


What two types of chromosomal mutations?

Two are insertion mutations and deletion mutations.


What are known as gene mutations and occur at a single point in the DNA sequence?

Mutations that occur at a single point in the DNA sequence are Point Mutations.