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Do all mutations in DNA coding for mrna cause a change in an organism?
Wiki User
∙ 9y ago
No. Some mutations can be silent, meaning that they have different codes yet it produces the same protein. If it is a mutation for the start of a mRNA sequence, then the polypeptide will just be discarded if there is no AUG.
Wiki User
∙ 9y ago
Wiki User
∙ 14y agoNot necessarily often changes to RNA will result in the death of the cell. Some RNA mutations are benign doing nothing for the genetic code.
Wiki User
∙ 13y agoYes it is divides into three categories substitution, insertion,and deletion. If a change occurs then the original instructions will be lost and a mutation will occur
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How can mutations affect protein synthesis?
it can cause cancer
Relate genetic variation and mutations to each other?
mutations cause genetic variation, and vice-versa. If there is a genetic variation (or lack of one), then this can effect the severity of the mutation.
What are the ultimate cause of alleles?
To help and construct every part of your body, from bone structure, to eye color, and the thickness of your hair All because it runs through your family and you can take after so many things and so it is hard sometimes to understand but you know how like you can sometimes look like your mom and your dad too...you take after them and like you can have like your moms nose or something you know!? it really means that you take after your family. And also there are so many genes cause of who and what your family is and stuff...
What is the primary mechanism that is responsible for evolutionary change?
Evolutionary change is generally a result of subtle morphological changes of an organism. These changes begin with genotypic mutations, often involving module duplication or deletion (a module being a unit on an organism that is easily adapted, such as segments, legs, or wings). If this change is adaptive (that is, it helps the organism survive), the gene will be passed on to the offspring (natural selection). Genetic mutations also help alter fully functioning features of organisms. For example, the ancient protein globulin originally existed in bacteria as a way to bind and carry oxygen. Over the centuries, mutations to the structure of globulin has expanded its role in organisms so that it functions differently in different tissue (e.g. muscle tissue versus fetal tissue)Essentially, evolutionary change can affect a protein's diversity in function, its frequency of expression, heterochromy (i.e. change in timing of developmental events, or the change in time of expression of a protein), allometric growth (i.e. change in rate or dimension of growth, such as wings versus limbs), and many other forms of adaptation. However, it is important to note that everything is determined by a combination of nature and nurture. By nature, I mean genetics, and the pathway of gene to RNA to protein. Genes are the blueprints for proteins, which are ultimately the building blocks for organisms. However, the environment (nurture) interacts with the ability for genes to produce these proteins through processes such as methylation (which essentially determines how accessible a gene is). Mutations can also cause genetic deletions, translocations, inversions, duplications (etcetera) which affect protein expression. These types of mutations are often seen in diseases like sickle cell anemia. A genetic mutation inhibits the ability of hemoglobin to form the appropriate protein structure for red blood cells. These types of mutations often involve a loss of function, although they may still be categorized as evolutionary change.In the end, evolutionary change is a constant, continuous process. To be cheesy: it's happening right now! :-)http://evolution.berkeley.edu/evolibrary/article/0_0_0/evodevo_05
Difference between adaptation and natural selection?
Adaptation are the physical or the behavioral traits that make an organism better fits to its environment while the Variation usually comes from random mutations. Mutations are iniatially cause by a new heritable traits.
How do lethal mutations and neutral mutations differ?
Lethal mutations cause such a radical change that the organism cannot live with it and dies. A neutral mutation is a simple change that does not affect the organism in any way, such as a new eye colour.
Why would a change in DNA sequence change that organism?
In an organism, a genetic code is made by the cells, but in that genetic sequence, if one or more letters are change, replaced, or deleted, then those cause mutations in the organism In an organism, a genetic code is made by the cells, but in that genetic sequence, if one or more letters are change, replaced, or deleted, then those cause mutations in the organism
Can mutations cause changes in DNA sequences?
mutations
How can a mutation in DNA base sequence cause a change in a trait?
Some mutations produce new traits that can help an organism survive.
How can a mutation a DNA base sequence cause a change in a trait?
Some mutations produce new traits that can help an organism survive.
How mutation affect survival skills of an organism?
It depends on the mutation. Some mutations have no effect on survival, some mutations are lethal, and some mutations make an individual better adapted to its environment, so it will be more fit than those without the mutation, and therefore produce more offspring with the same mutation, which could change the allele frequency of a population.
What are the impact of mutations and how mutations can have no impact?
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.
How does a mutation in a sex cell differ from a mutation in a non-sex cell?
Mutations in sex cells can be passed on to children. Mutations in sex cells only affect offspring. Mutations in sex cells do not affect the organism.
How can a mutation in a gene cause a change in a organism's phenotype?
Mutations can cause a cell to produce an incorrect number of proteins during protein synthesis and the phenotype of the organism would be different from what it normally would have been. Some examples are when a cat has 6 toes or a lemur has white fur.
Change in genetic material of an organism from one genrartion to another?
When mutations happen, they cause the alteration of genetic material.
How do mutations affect translations?
A frameshift mutation may cause a change in the codon sequence, specifically the 3-base sequence which is responsible for coding a specific amino acid. A different protein, a non-functional one, or no protein at all may be the result of this change.
How can mutations affect an organism?
It depends on if it is in the germ line or in a somatic Cell. In the germ line a mutation can cause birth defects or lethal mutations. In somatic Cells it can cause cancer. The Genetic Mutation will have either of these effects: either beneficial or detrimental.
