Which of the following statements regarding gene mutations is NOT true? Conditional mutations have different phenotypic...
| Which of the following statements regarding gene mutations is NOT true? | |||||||||
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Homework Answers
I believe the false statement to be:
Option C) Frameshift mutations often result in a truncated protein product, similar to a nonsense mutation.
because while nonsense mutation leads to truncated product, frameshift mutation will result in a protein but that protein's sequence and structure would be completely different than what it was suppose to be and hence nonfunctional but the protein will be produced nontheless.
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Which of the following statements regarding gene mutations is
NOT true?
Conditional mutations have different phenotypic...
Please help answer Conditional alleles are mutant gene versions encoding proteins that can function normally at...
Please help answer
Conditional alleles are mutant gene versions encoding proteins that can function normally at the permissive condition but are defective at the restrictive condition. One commonly used condition is temperature. Conditional alleles are especially useful to geneticists because they permit the study of essential genes. At the permissive temperature, the organism lives normally. When the organism is shifted to the non-permissive temperature, the effect of inactivating the gene can be studied. Which of the alleles shown below (mutations...
2 pts Match the following mutations with the effect they would produce Que Que Que Que...
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Most nonsense mutations in a structural gene for a protein have a null phenotype. How many...
Most nonsense mutations in a structural gene for a protein have a null phenotype. How many different single base substitution mutations in a protein coding sequence can produce a nonsense mutation?
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Check all of the statements that apply to neomorphic alleles of genes Check All That Apply They are usually dominant to normal alleles. They are usually recessive to normal alleles. They can generate normal proteins. They can generate mutant proteins The HD-allele that makes a mutant protein with too large a polyQ region and thus causes Huntington disease is a good example. The mutation can be in either the promoter/enhancer or in the coding region The mutation can be in...
4) In this problem we will explore some of the many ways that mutations in two...
4) In this problem we will explore some of the many ways that mutations in two different genes can interact to produce different Mendelian ratios. Consider a hypothetical snail species that has shells that may be fully banded, ventrally banded, or completely unbanded (no bands). Imagine mutations in two different unlinked genes that can, in certain combinations, block the formation of banding, either fully or on most of the dorsal portion of the shell. In principle, there are two different...
Explain what classifies a mutation as “temperature‑sensitive” by comparing phenotype(s) with a wildtype allele. How is this type of phenotype explained by protein behaviour? Would the following typ...
Explain what classifies a mutation as “temperature‑sensitive” by comparing phenotype(s) with a wildtype allele. How is this type of phenotype explained by protein behaviour? Would the following types of mutations most likely have: severe effects, mild effects, or no effect on protein function? Briefly explain your answers. Note that there may be more than one correct answer, but you need only to give one sensible answer and explain your reasoning. [6 marks] A nonsense mutation occurring in sequences encoding amino...
3. Mutations in bacteria that affect gene regulation may have a cis- or trans-effect on the...
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Which of the following mutations would be most likely to have a harmful effect on an...
Which of the following mutations would be most likely to have a harmful effect on an organism? (A) a deletion of three nucleotides near the middle of a gene (B) a single nucleotide deletion in the middle of an intron (C) a single nucleotide deletion near the end of the coding sequence (D) a single nucleotide insertion downstream of, and close to, the start of the coding sequence In this problem, why (c) cannot be the answer?? Single nucleotide deletion...
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1. You have used a mutagen to induce mutations in a DNA sequence. If the original DNA strand is 5'-ATGGGACTAGATACC-3', then which of the following represents a nonsense mutation? (1pt) 5'-ATGGGTCTAGATACC-3' 5'-ATGCGACTAGATACC-3' 5'-ATGTGACTAGATACC-3' 5'-ATGGGACTAAGATACC-3' 2. A mutation that changes a codon sequence, and subsequently changes the amino acid that should have been placed at that point in the polypeptide chain, is called a… (1pt) silent mutation frameshift mutation missense mutation nonsense mutation 3. Excision repair corrects DNA by (1pt) correcting A=T...
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Please help answer
Conditional alleles are mutant gene versions encoding proteins that can function normally at the permissive condition but are defective at the restrictive condition. One commonly used condition is temperature. Conditional alleles are especially useful to geneticists because they permit the study of essential genes. At the permissive temperature, the organism lives normally. When the organism is shifted to the non-permissive temperature, the effect of inactivating the gene can be studied. Which of the alleles shown below (mutations...
2 pts Match the following mutations with the effect they would produce Que Que Que Que the effect they Frameshift mutation. (Choose] Time Running Attendo Choose 1 Hour 11M The protein will contain one differentino acid. But, depending if the new amino acid is offerent types pour vs. Every amino acid proceeding the mutation will be different, as a result, the protein will be different The protein will be shorter, if the mutation occurs early on the new protein may...
Check all of the statements that apply to neomorphic alleles of genes Check All That Apply They are usually dominant to normal alleles. They are usually recessive to normal alleles. They can generate normal proteins. They can generate mutant proteins The HD-allele that makes a mutant protein with too large a polyQ region and thus causes Huntington disease is a good example. The mutation can be in either the promoter/enhancer or in the coding region The mutation can be in...
4) In this problem we will explore some of the many ways that mutations in two different genes can interact to produce different Mendelian ratios. Consider a hypothetical snail species that has shells that may be fully banded, ventrally banded, or completely unbanded (no bands). Imagine mutations in two different unlinked genes that can, in certain combinations, block the formation of banding, either fully or on most of the dorsal portion of the shell. In principle, there are two different...
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