answersLogoWhite

0


Best Answer

No (contrary to previous answer to this question)

single base pair mutations, which swap out 1 base for another, say from an A to a G can be a "silent mutation"

This means that the 3base "codon" that codes for an amino acid will still code for the same AA.

AA's have about 3 different codons that will code for it, usually with the difference being in the last base pair.

So for examples lets say AAC and AAT both code for Amino acid X, and the mutation causes the C in sequence AAC to change to a T it becomes AAT, and will still code for amino acid X.... no change in protein structure or function.

User Avatar

Wiki User

βˆ™ 12y ago
This answer is:
User Avatar
More answers
User Avatar

Wiki User

βˆ™ 12y ago

No, most of the time this is true but on occasion the new mutation can actually code for the same protein. On other occasions there may not be a protein made at all.

no. some mutations do not cause changes in proteins produced by a gene. some mutations might occur in non coding regions of the DNA sequence. other mutations are silent mutations. these are substitution mutations that end up coding for the same amino acid as the original sequence.

This answer is:
User Avatar

User Avatar

Wiki User

βˆ™ 13y ago

Mutations can be generally of three types. They can be harmful, they can be helpful, or they can have no significant affect. Helpful mutations are the least frequent kind, but they are nonetheless very important as a means by which evolution can occur.

This answer is:
User Avatar

User Avatar

Wiki User

βˆ™ 12y ago

No not always. In missense mutations there is a single nucleotide change that does not change the translated amino acid. In addition, even if the amino acid was changed by a DNA mutation it may be benign substitution with no negative result if new amino acid has similar properties to the original.

This answer is:
User Avatar

User Avatar

Wiki User

βˆ™ 12y ago

Yes, yet there are several different Types of these.

This answer is:
User Avatar

User Avatar

Wiki User

βˆ™ 11y ago

No. Mutations in "junk" DNA have no impact on the organism.

This answer is:
User Avatar

User Avatar

Wiki User

βˆ™ 11y ago

No.

This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: Do all mutations result in malfunctioning proteins?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Continue Learning about Biology

What are point mutations?

Point mutations are a knock out of a single A.A. pair that shifts the whole code causing cancer or miss development of all the proteins behind it. Point mutations can be seen in K-Ras gene and the innactivation of the P53 to not stop the genetic mutation to arrect the cell cycle. The p53 is a tumor repressing gene.


Are all mutations bad Explain your answer?

No


Cancer can occur when what mutate?

Cancer can occur when genes mutate. Genes are sections of DNA that carry instructions to make proteins. Proteins control how cells grow and multiply. When genes mutate, they can cause abnormal or missing proteins, which can disrupt the normal functioning of cells and lead to uncontrolled growth. Mutations can be very small, affecting only a few nucleotides, or very large, affecting whole chromosomes. Mutations can also be inherited from parents or acquired during a person’s lifetime due to environmental factors, such as chemicals, radiation, or viruses. Not all mutations cause cancer, and not all cancers are caused by mutations. Some cancers are caused by epigenetic changes, which affect how genes are turned on or off without changing the DNA sequence. Some people may also have a higher risk of developing cancer due to their genetic makeup, family history, or lifestyle factors


Are all proteins enzymes Explain your answer?

No. All enzymes are proteins but not all proteins are enzymes. Muscle tissue is made of protein but it is not made of enzymes.


Can mutations cause changes in DNA sequences?

mutations

Related questions

Can you get Pokemon mutations such as mewtrance in soulsilver with an action replay code?

Pokemon mutations are not part of the game at all. Pokemon mutations are a result of hacking by an action replay.


How can DNA-level mutations affect the structure of proteins?

DNA is formed out of proteins, mutations can cause the bonds between the chains to loosen or not form at all. It may also cause additonal bonds forming and changet the order of amino acids involved in the chain.


Is point mutation lethal?

No. Point mutations, or those resulting from a change in one or a few nucleotides at a single location in a DNA sequence. There are two types of point mutations: base substitutions and frameshift mutations. Not all mutations are in these coding sequences but if they are, then the result can be different or non-functioning proteins. They are considered to be neutral, beneficial or harmful. Two harmful point mutations are sickle cell anemia and polycystic kidney disease.


How is a mutation harmful to a organism?

Not all mutations are harmful. A mutation the give the organism antibiotic resistance, for example, is quite helpful. A different mutation that causes a necessary protein to misfold may result in death. In general mutations that affect proteins that are necessary for life will result in the death of the organism. One such mutation is in the protein p53 which is necessary to prevent a cell from growing uncontrollable (cancer). A mutation in p53 could result in a cell with damaged DNA to reproduce - this is what we call cancer.


What is the mutated gene of the Charcot-Marie-Tooth disease?

CMT is caused by mutations in genes that produce proteins involved in the structure and function of either the peripheral nerve axon or the myelin sheath. Although different proteins are abnormal in different forms of CMT disease, all of the mutations affect the normal function of the peripheral nerves. The gene mutations in CMT disease are usually inherited.


Are all mutations bad.?

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


Will cells with mutations always make normal proteins?

No. Cells that have experienced mutation will most likely not have normal cells their cells will be all messed up.


Do all mutations result in heritable changes?

yes, only heritable changes in the DNA come under the perview of mutation.


What are point mutations?

Point mutations are a knock out of a single A.A. pair that shifts the whole code causing cancer or miss development of all the proteins behind it. Point mutations can be seen in K-Ras gene and the innactivation of the P53 to not stop the genetic mutation to arrect the cell cycle. The p53 is a tumor repressing gene.


Are all mutations generic?

Yes. All mutations of the genetic material are genetic.


Are there any gentic mutations compatible with life?

To function correctly, each cell depends on thousands of proteins to do their jobs in the right places at the right times. Sometimes, gene mutations prevent one or more of these proteins from working properly. By changing a gene's instructions for making a protein, a mutation can cause the protein to malfunction or to be missing entirely. When a mutation alters a protein that plays a critical role in the body, it can disrupt normal development or cause a medical condition. A condition caused by mutations in one or more genes is called a genetic disorder. A very small percentage of all mutations actually have a positive effect. These mutations lead to new versions of proteins that help an organism and its future generations better adapt to changes in their environment. For example, a beneficial mutation could result in a protein that protects the organism from a new strain of bacteria.


Does cancer result from genetic mutations-?

Mutating Cells can be a source of Cancer, but not necessarily. All mutating cells do not cause Cancer.