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Mutations are changes in the DNA sequence of a cell's genome and are caused by radiation, viruses, transposons and mutagenic chemicals, as well as errors that occur during meiosis or DNA replication.They can also be induced by the organism itself, by cellular processes such as hypermutation.
Mutation can result in several different types of change in DNA sequences; these can either have no effect, alter the product of a gene, or prevent the gene from functioning properly or completely. Studies in the fly Drosophila melanogaster suggest that if a mutation changes a protein produced by a gene, this will probably be harmful, with about 70 percent of these mutations having damaging effects, and the remainder being either neutral or weakly beneficial.Due to the damaging effects that mutations can have on cells, organisms have evolved mechanisms such as DNA repair to remove mutations.Therefore, the optimal mutation rate for a species is a trade-off between costs of a high mutation rate, such as deleterious mutations, and the metabolic costs of maintaining systems to reduce the mutation rate, such as DNA repair enzymes. Viruses that use RNA as their genetic material have rapid mutation rates,which can be an advantage since these viruses will evolve constantly and rapidly, and thus evade the defensive responses of e.g. the humanimmune system.
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What is an example of a good mutation in genetics?
One example of a beneficial mutation in genetics is the mutation that causes sickle cell anemia. This mutation provides some protection against malaria, making individuals with this mutation less susceptible to the disease.
A genetic mutation that causes a codon that should code for a specific amino acid to be changed into a stop codon results in a shortened protein product and is known as?
A premature stop codon mutation, also known as a nonsense mutation. This mutation causes the translation of the protein to be halted prematurely, leading to a truncated and often nonfunctional protein product.
What is a Missence mutation?
A mutation that causes the code for the wrong amino acid (apexvs.com)
Are thornless plants a mutation?
Thornless plants can indeed be considered a mutation, specifically a genetic mutation that results in the absence of thorns or prickles on the plant. This mutation can occur naturally or be artificially induced through selective breeding or genetic modification. Thornless varieties are often desirable for agricultural and horticultural purposes due to their reduced risk of causing injury and easier handling.
Why does an insertion mutation usually cause defects during protein synthesis than a point mutation?
Insertion mutations can affect many amino acids in the protein.An insertion mutation usually causes more defects during protein synthesis than point mutation because an insertion mutation will affect many amino acids in the protein.
What is the type of mutation that causes hemophilia?
There is no single type of mutation that causes Hemophilia A. It is not the type of mutation but rather the location of the mutation within the genetic code.
What is the type of mutation that causes Digeorge syndrome?
Deletion Mutation causes DiGeorges Syndrome.
What is a mutation that causes the death of an organism?
Lethal Mutation.
A mutation that causes disease resistance in potatoes is a?
harmful mutation
Is mutagen an environmental factor that causes mutation?
It increases the odds of mutation.
What is an mutation?
An Inversion mutation is a mutation that causes a reversal in the order of a segment of a chromosome within the chromosome, or a gene.
What type of mutation causes autism?
The mutation that causes Autism is a rare genetic mutation. There are three different genes that are linked to the cause of different disorders on the Autism Spectrum.
What is the type of mutation that causes crohn's disease?
A frameshift mutation in the CARD15 gene
What are the causes of mutation?
Mutation is caused when chunks of chromosomes cut taken or fall off. So the chromosome with the DNA causes a mutation which sometimes is helpful but mosty hard to live with.
What is the factor that causes mutation?
radiations
What kind of mutation causes a four leaf clover?
xx and xy genetic mutation.
What is the type of mutation that causes this disorder?
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