Homework Answers
ANSWER.
* Silent
mutation --------- A mutation that changes one codon to a different
codon that specifies the same amino acid,such that
there is no change in the resulting polypeptide.
* Frameshift
mutation.------ A mutation resulting from an insertion or deletion of bases
that causes a change in the reading frame of the mRNA.
* Missense
mutation.----- A mutation that result in a change in a codon such that a
different amino acid is specified.
* Nonsense
mutation.----- A mutation that changes a codon that specifies an amino acid
to a stop codon,resulting in premature termination of polypeptide
synthesis.
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Match each mutation with its appropriate description. A mutation that changes a codon that specifies an...
11. Match each type of mutation with the corresponding description. (4 points) Missense An insertion or...
11. Match each type of mutation with the corresponding description. (4 points) Missense An insertion or deletion of nucleotides that are not in multiples of 3. Nonsense A mutation that does not alter the protein sequence. Silent A mutation that confers an amino acid substitution. Frameshift A mutation that confers a premature stop codon.
Match each type of mutation to the correct example. Nonsense mutation A codon in the PAH...
Match each type of mutation to the correct example. Nonsense mutation A codon in the PAH gene with a C-to-T mutation still specifies leucine. Silent mutation An allele of the CFTR gene where a codon mutated from AAG to TAG. Missense mutation A GGT (glycine) to GAT (aspartic acid) mutation in the KRAS gene A 2 base pair deletion in the ORF of the gene encoding the Retinitis Pigmentosum GTPase Regulator Frameshift mutation Promoter mutation A T-to-G mutation - 35...
Mutations Worksheet-Dcletlon, Inserilon & Substitution
Mutations Worksheet-Dcletlon, Inserilon & SubstitutionThere are several types of mutations:> DELETION (a base is lost/deleted)> INSERTION (an extra base is added/inserted)- Deletion\& insertion may cause what's called a FRAMESHIFT mutation, meaning the reading "frame"changes, thus changing the amino acid sequence from this point forward > SUBSTITUTION (one base is substituted for another)- If a substitution changes the amino acid, it's called a MISSENSE mutation- If a substitution does not change the amino add, it's called a SILENT mutation- If a...
QUESTION Which one of the following statements is correct? A Anonsense mutation changes a stop codon...
QUESTION Which one of the following statements is correct? A Anonsense mutation changes a stop codon to an amino-acid coding codon B: A nonsense mutation changes an amino-acid codon to a stop codon C: A silent mutation changes the amino acid sequence of the polypeptide D. A missense is usually more severe than a nonsense mutation E A Silent mutation is usually more severe than a missense mutation QUESTIONS "In a plant in which 2n - 24. what is the...
Using these types of genetic changes: Base substitution, Transition, Transversion, Missense mutation, Nonsense mutation, Insertion, Deletion,...
Using these types of genetic changes: Base substitution, Transition, Transversion, Missense mutation, Nonsense mutation, Insertion, Deletion, Frameshift mutation Label these genetic changes (a-e). More than one answer may apply to each answer. a. GC->CG in the protein coding region on a gene. b. GC->TA in a GAA glutamate codon c. Loss of three bases GAA for a glutamate codon d. GC->CG in a tRNA gene e. GC->AT in the ribosome binding site of a mRNA
1. In a "silent" mutation A) The codon that mutates does not cause a change in...
1. In a "silent" mutation A) The codon that mutates does not cause a change in the amino acid specified B) The codon that mutates causes change in the amino acid specified C) The codon that mutates cause a stop codon to occur instead of the placement of an amino acid D) The mutation does not occur in a codon E) The mutation is not in DNA 2. In a "nonsense" mutation A) The codon that mutates does not cause...
*Hint: You will have one of each type. Types of Mutations? Point - Missense Frameshift -...
*Hint: You will have one of each type. Types of Mutations? Point - Missense Frameshift - Insertion Point - Nonsense Frameshift Deletion Point - Silent Original DNA Sequence: TACACCTTGGCGACT mRNA Sequence: AUG Amino Acid Sequence: Mutated DNA Sequence #1: TACATCTTGGCGACT What's the mRNA sequence? (Circle the change) AUG TALAALLA What will be the amino acid sequence? Will there likely be effects?_ What kind of mutation is this? Mutated DNA Sequence 12: TACGAC CTTGGCGACT What's the mRNA sequence? (Circle the change)...
An important validation of the genetic code occurred when George Streisinger determined the amino acid sequence of bacteriophage T4 lysozyme and of mutants induced by proflavin, a dye with a planar st...
An important validation of the genetic code occurred when George
Streisinger determined the amino acid sequence of bacteriophage T4
lysozyme and of mutants induced by proflavin, a dye with a planar
structure that can intercalate (fit) between successive base pairs
in DNA and induce frameshift mutations−that is, mutations involving
additions or deletions of a single base. Streisinger and colleagues
found that a particular single-base insertion mutation could be
suppressed, with wild-type function restored, by a mutation that
evidently involved a...
Please help me with biology 1. Online exercise: Find reports that document the relationship between the...
Please help me with biology
1. Online exercise: Find reports that document the relationship between the age of the mother and the risk for having a baby with Down Syndrome (Trisomy 21). For your interest only 2. Suppose that during transcription of a gene, RNA polymerase mistakenly inserts an incorrect base opposite the template DNA. This error results in an mRNA with an altered nucleotide sequence. Is this a mutation? For questions 3-10, consider the following mRNA, which is the...
A gene point mutation that converts the sequence of the codon and therefore converts the encoded...
A gene point mutation that converts the sequence of the codon and therefore converts the encoded amino acid to a stop codon: missense mutation frameshift mutation silent mutation nonsense mutation A mouse gene was identified and determined to be required for formation of heart muscle. A gene with a similar sequence was identified in the human genome. What experiment could scientists do to determine if the mouse and human genes have similar functions? The scientist could place the mutant mouse...
11. Match each type of mutation with the corresponding description. (4 points) Missense An insertion or deletion of nucleotides that are not in multiples of 3. Nonsense A mutation that does not alter the protein sequence. Silent A mutation that confers an amino acid substitution. Frameshift A mutation that confers a premature stop codon.
Match each type of mutation to the correct example. Nonsense mutation A codon in the PAH gene with a C-to-T mutation still specifies leucine. Silent mutation An allele of the CFTR gene where a codon mutated from AAG to TAG. Missense mutation A GGT (glycine) to GAT (aspartic acid) mutation in the KRAS gene A 2 base pair deletion in the ORF of the gene encoding the Retinitis Pigmentosum GTPase Regulator Frameshift mutation Promoter mutation A T-to-G mutation - 35...
Mutations Worksheet-Dcletlon, Inserilon & SubstitutionThere are several types of mutations:> DELETION (a base is lost/deleted)> INSERTION (an extra base is added/inserted)- Deletion\& insertion may cause what's called a FRAMESHIFT mutation, meaning the reading "frame"changes, thus changing the amino acid sequence from this point forward > SUBSTITUTION (one base is substituted for another)- If a substitution changes the amino acid, it's called a MISSENSE mutation- If a substitution does not change the amino add, it's called a SILENT mutation- If a...
QUESTION Which one of the following statements is correct? A Anonsense mutation changes a stop codon to an amino-acid coding codon B: A nonsense mutation changes an amino-acid codon to a stop codon C: A silent mutation changes the amino acid sequence of the polypeptide D. A missense is usually more severe than a nonsense mutation E A Silent mutation is usually more severe than a missense mutation QUESTIONS "In a plant in which 2n - 24. what is the...
*Hint: You will have one of each type. Types of Mutations? Point - Missense Frameshift - Insertion Point - Nonsense Frameshift Deletion Point - Silent Original DNA Sequence: TACACCTTGGCGACT mRNA Sequence: AUG Amino Acid Sequence: Mutated DNA Sequence #1: TACATCTTGGCGACT What's the mRNA sequence? (Circle the change) AUG TALAALLA What will be the amino acid sequence? Will there likely be effects?_ What kind of mutation is this? Mutated DNA Sequence 12: TACGAC CTTGGCGACT What's the mRNA sequence? (Circle the change)...
An important validation of the genetic code occurred when George
Streisinger determined the amino acid sequence of bacteriophage T4
lysozyme and of mutants induced by proflavin, a dye with a planar
structure that can intercalate (fit) between successive base pairs
in DNA and induce frameshift mutations−that is, mutations involving
additions or deletions of a single base. Streisinger and colleagues
found that a particular single-base insertion mutation could be
suppressed, with wild-type function restored, by a mutation that
evidently involved a...
Please help me with biology
1. Online exercise: Find reports that document the relationship between the age of the mother and the risk for having a baby with Down Syndrome (Trisomy 21). For your interest only 2. Suppose that during transcription of a gene, RNA polymerase mistakenly inserts an incorrect base opposite the template DNA. This error results in an mRNA with an altered nucleotide sequence. Is this a mutation? For questions 3-10, consider the following mRNA, which is the...
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