0
What else can I help you with?
If a mutation happens within a gene how could this alter the protein that is made by the gene?
DNA codes forproteins. So, if the DNA is mutated, it directly affects the protein. Two examples of mutations are:A point mutation. In this situation, onebase pair(A, T, C, or G) is replaced with a different, incorrect one. When this happens and the DNA is read in order to synthesize a protein, this incorrect base pair can lead to the DNA codon (set of 3 base pairs) that codes for a different base pair than it should have. This causes the protein to have one incorrect amino acid in it. Also, this mutation does not always mutate the protein because some codons code for the same amino acid.A frame shift mutation. This type is much worse. In this case, a base pair is just inserted in to theDNA sequence. When this happens, the entire sequence following it is essentially pushed over one spot. Then, each set of 3 base pairs that would code for an amino acid is shifted so that, instead, you would have something like 2 base pairs and 1 base pair from the codon next to it. This causes every single codon to mutate, which essentially leads to every amino acid being different and therefore, the entire protein being different.I hope that made sense. Diagrams help.
Why frameshift mutations have greater effect than point mutations?
A substitution mutation means that one base was copied incorrectly within a string of DNA. Since it takes three DNA bases to code for a single amino acid, only one amino acid is affected. A frameshift mutation, on the other hand, refers to an insertion or deletion of any number of DNA bases NOT divisible by three. This mutation throws off EVERY other amino acid after it and tends to be devastating. For example, if you had this sequence: actgactga, you would get three amino acids: act, gac, and tga. If you had a substitution error, it might yield cctgactga. In this case, only the first acid would be different. In the case of an insertion (one type of frameshift mutation), you might get: acttgactga. As you can see, a t-base has been added towards the beginning. in this case, you would get the amino acid sequence: act, tga, ctg. EVERY amino acid following the mutation is different from what it should be.
Which is more harmful frameshift mutation or point mutation?
point mutations include substitutions insertions and deletions of single nucleotides in DNA. insertions and deletions have a greater effect on proteins than do substitutions because insertions and deletions affect every amino acid that is specified by the nucleotides that follow the point mutation. in contrast a substitution affects a single amino acid. a change in more than one amino acid is more than likely to alter the ability of the protein to function normally than is a change in a single amino acid
What are the two function groups found in every amino acid?
Amino acids have 2 functional groups, an a-carboxyl group and an-amino group.
Why do some kinds of point mutations cause greater changes in proteins than others?
Because not every point mutation changes the protein. If it doesn't change, we call it a silent mutation or when one letter is deleted at the beginning, than the whole chain changes, but if it's at the end only the and changes so it's a bigger effect on the protein :p
What term describes a mutation that affects every amino acid that comes after that?
frameshift
What term describes a mutation that affects every amino acid that comes come after it?
frameshift
What term describes a mutation tha effects every amino acid tha comes after it?
Frameshift
Why does a deletion mutation usually cause more defects during protein synthesis than point mutation?
A point mutation will change only one particular base of the codon, so it will only cause a change in one of the amino acids that will make up the protein. A deletion mutation will completely remove a base- causing a change in every amino acid that follows the deletion. Here is an example with a sentence, using three letter words (since amino acids are determined from 3 letter codons). THE FAT CAT ATE ONE RAT. A point mutation would change only one letter (like changing the C to a B). The new sentence is only slightly changed: THE FAT BAT ATE ONE RAT. A deletion mutation would remove a letter (like deleting the C). The new sentence will now be completely changed from the deletion on. THE FAT ATA TEO NER AT. See the difference??? Point mutations usually take place during DNA replication. A single point mutation can change the whole DNA sequence.
Why does deletion mutation usually cause more defects protein synthesis than a point mutation?
A point mutation will change only one particular base of the codon, so it will only cause a change in one of the amino acids that will make up the protein. A deletion mutation will completely remove a base- causing a change in every amino acid that follows the deletion. Here is an example with a sentence, using three letter words (since amino acids are determined from 3 letter codons). THE FAT CAT ATE ONE RAT. A point mutation would change only one letter (like changing the C to a B). The new sentence is only slightly changed: THE FAT BAT ATE ONE RAT. A deletion mutation would remove a letter (like deleting the C). The new sentence will now be completely changed from the deletion on. THE FAT ATA TEO NER AT. See the difference??? Point mutations usually take place during DNA replication. A single point mutation can change the whole DNA sequence.
Why does a deletion mutation usually cause more defects during protein synthesis than a point mutation?
Deletion mutations can affect the entire base sequence.
Why does a deletion usually cause more defects during protein synthesis than a point mutation?
A point mutation will change only one particular base of the codon, so it will only cause a change in one of the amino acids that will make up the protein. A deletion mutation will completely remove a base- causing a change in every amino acid that follows the deletion. Here is an example with a sentence, using three letter words (since amino acids are determined from 3 letter codons). THE FAT CAT ATE ONE RAT. A point mutation would change only one letter (like changing the C to a B). The new sentence is only slightly changed: THE FAT BAT ATE ONE RAT. A deletion mutation would remove a letter (like deleting the C). The new sentence will now be completely changed from the deletion on. THE FAT ATA TEO NER AT. See the difference??? Point mutations usually take place during DNA replication. A single point mutation can change the whole DNA sequence.
What is a mutation in a gene?
A permanent change in the gene's DNA sequence. Gene mutations involving one or a few nuckeotides is called point mutation. If a nucleotide is added or deleted, the bases are still read in groups of three, but now those groupings are shifted for every codon that follows. This is called frameshift mutation. Your welcome. (:
How might a point mutation in a gene affect the reasulting protein?
point mutations include substitutions insertions and deletions of a single nuceotide in DNA. CONSIDER: insertions and deletions have a greater effect on proteins that do substiutions because insertions and deletions affect every amino acid that is specified by the nucleotides that follow the point of mutation CONSIDER: a substitution affects a single amino acid a change in more than one amino acid is more likely to alter the ability of the protein to function narmally than is a change in a single amino acid CONSIDER: follow me on twitter @Rocco_Gone_Ham
How do variations in DNA reflects changes in an organism protein?
every amino acid is difined by a set of 3 baces. If you change the amino acids you change the protien.
If a nucleotide pair were removed from a gene what would be affected?
If a nucleotide pair were to be removed from a gene, it would cause a frameshift mutation. This would alter the reading frame of the gene, leading to a change in the amino acid sequence of the protein encoded by that gene. This could potentially result in a nonfunctional or altered protein.
If a mutation happens within a gene how could this alter the protein that is made by the gene?
DNA codes forproteins. So, if the DNA is mutated, it directly affects the protein. Two examples of mutations are:A point mutation. In this situation, onebase pair(A, T, C, or G) is replaced with a different, incorrect one. When this happens and the DNA is read in order to synthesize a protein, this incorrect base pair can lead to the DNA codon (set of 3 base pairs) that codes for a different base pair than it should have. This causes the protein to have one incorrect amino acid in it. Also, this mutation does not always mutate the protein because some codons code for the same amino acid.A frame shift mutation. This type is much worse. In this case, a base pair is just inserted in to theDNA sequence. When this happens, the entire sequence following it is essentially pushed over one spot. Then, each set of 3 base pairs that would code for an amino acid is shifted so that, instead, you would have something like 2 base pairs and 1 base pair from the codon next to it. This causes every single codon to mutate, which essentially leads to every amino acid being different and therefore, the entire protein being different.I hope that made sense. Diagrams help.
