Q: In pcr experiment, Does electrophoresis show that only DNA products of the desired size are present?…
A: A DNA sequence may be amplified trillions of times via PCR, yielding enough DNA copies for further…
Q: What is linker scanning mutagenesis?
A: Answer: Introduction: Old-style approaches, containing linker-scanning mutagenesis includes…
Q: What type of repair system would cells most likely use to repair DNA with a deaminated adenine?
A: The spontaneous alteration of the DNA base pairs is needed to undergo the process of DNA repair.…
Q: What is the name of the DNA duplication process? What is the main enzyme that participates in it?
A: Every living cell divides to form multiple cells. During this division process, there is another…
Q: If a mutagen causes bases to be removed from nucleotides withinDNA, what repair system would fix…
A: DNA repair is the process in which certain specialized enzymes within the cell known as DNA repair…
Q: Do you consider TEs to be mutagens? Explain.
A: Mutation is defined as sudden inheritable change that occurs in the DNA sequence. Mutation occurs…
Q: Considering prokaryotes, what is the enzyme that removes the RNA primer and replaces it with newly…
A: RNA primer is used in initial priming to then later on DNA ligase can not seal the nick between the…
Q: What would happen evolutionarily if DNA was transmitted precisely from generation to generation…
A: Mutations are inheritable alteration in DNA sequence. It can occurs in single base pair or long…
Q: What is the function of DNA topoisomerases?
A: In prokaryotes, replication process requires three types of DNA polymerases (DNA polymerase I, II,…
Q: Why is ligase needed to make recombinant DNA? Whatwould be the immediate consequence in the cloning…
A: DNA replication is the process of copying the DNA of the cell during cell division. DNA ligase is an…
Q: How did the private corporation Celera Genomics approach the sequencing of the human genome? What…
A: Celera Genomics is a private biotechnology company that raced with the IHGSC to complete the…
Q: Is Carbon Copy a transgenic animal?
A: Biotechnology is the modern field of biology which deals with the application of new modern…
Q: Assuming you started with only one copy of a DNA sequence, how many copies should be present after…
A: Polymerase chain reaction (PCR) is a method applied in molecular biology for DNA amplification. It…
Q: How could DNA-mediated transformation be used to test chemicals for their mutagenic activity?
A: Deoxyribonucleic acid (DNA) is an inheritable entity of almost every living organism. It is…
Q: In modern molecular genetics, what is recombinant DNA, and how is it prepared?
A: Deoxyribonucleic acid (DNA) is the genetic material that carries genetic information in the form of…
Q: If you were examining a sequence of chromosomal DNA, what characteristics would cause you to believe…
A: Step 1 The transposable element is a DNA (deoxyribonucleic acid) sequence that can change its…
Q: How does a mutagen induce mutation ?explain with examples?
A: The DNA is a genetic material- a polynucleotide chain made up of the long chain of A, T, G, and C.…
Q: What is the result of Frameshift mutations from the insertion or deletion of nucleotides within the…
A: Mutation, an alteration in the genetic material of a cell of a living organism or of a virus that is…
Q: What are Mutagens?
A: A mutation is defined as a change or alteration that occurs in the DNA of a cell. It occurs when…
Q: Which restriction enzyme used in your simulated electrophoresis experiment produced DNA with ‘sticky…
A: Restriction Enzymes or "Restriction endonucleases" are proteins that cut DNA at a specific base…
Q: When different individuals within a population have different numbers of restriction sites within…
A: Introduction: A restriction site in DNA is a group of 6–8 base pairs that a restriction enzyme…
Q: What is transgenic DNA?
A: Recombinant DNA technology involves integrating DNA molecules from two different species and…
Q: In DNA cloning, why do we need to check colonies for insert after transformation?
A: Gene is the basic unit of heredity. All living organisms contain certain nucleic acids as their…
Q: What are base analogs and why are they mutagenic?
A: Introduction :- A mutagen is a substance that can cause DNA mutations by chemical or physical means.…
Q: What would happen if, in the course of replication, thetopoisomerases were unable to reattach the…
A: DNA is a double helix molecule.
Q: If a bacterium possesses a mutation in the gene for DNA polymerase III, resulting in an enzyme…
A: In general, DNA replication is a very accurate process. Random mistakes occasionally occur and are…
Q: What is a mutagen?
A: The human genome is very dynamic in nature, it tends to mutate and any change in the genetic…
Q: How many exons has the CFTR gene?
A: Introduction :- The CFTR gene encodes a membrane protein and chloride channel in vertebrates called…
Q: What types of mutations occurred in DNA-(b) and DNA-(c)? What codons are found in the mRNA for the…
A: Introduction Deoxyribonucleic acid (DNA) is a molecule made up of two polynucleotide chains that…
Q: During PCR amplification in preparation for DNA sequencing, why were there different colors at the…
A: Polymerase chain reaction is a process by which millions of copies of a specific DNA segment are…
Q: what is the Compares and contrasts transformation, transduction, and conjugation
A: In transformation, a bacterium takes up a piece of DNA floating in its environment. In transduction,…
Q: What is the enzyme responsible for methylating DNA? How does a drug like doxorubicin affect DNA…
A: DNA is the nucleic acids present in the organisms. DNA is the deoxy ribose nucleic acid in which…
Q: What was the importance of replica plating in understanding how mutations arise?”
A:
Q: Describe how certain restriction enzymes generate DNA fragments with sticky ends, and others…
A: Restriction enzymes also called molecular scissors are the type of nuclease enzymes that cleaves the…
Q: If you performed PCR to amplify a gene region, and you began with 20 copies of double stranded…
A: PCR or polymerase chain reaction is a method that amplifies DNA (deoxyribonucleic acid) and it can…
Q: How do we know that DNA synthesis is discontinuous on one of the two template strands?
A: DNA replication refers to the process of making two identical copies of a DNA molecule. This…
Q: What is a direct way of repairing double-stranded DNA breaks?
A: DNA is the genetic material of all living cells. DNA forms a double-stranded double helix. The two…
Q: If the GAATTC palindrome is repeated four times on the same piece of linear DNA, and the restriction…
A: The restriction enzymes are responsible for cutting the double stranded DNA molecules at specific…
Q: Is DNA fragmentation genetic?
A: Deoxy ribonucleic acid (DNA) is the genetic material of most organisms that carry coded genetic…
Q: Why are X rays more potent mutagens than UV radiation?
A: Mutations arise due to permanent alterations occurred in the genotypes of organisms which cause…
Q: In genetic transformation, what is meant by the wordcompetence?
A: The process of taking up naked or foreign deoxyribonucleic acid (DNA) from the environment is called…
If a mutagen causes bases to be removed from
DNA, what repair system could fix this damage?
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- If a mutagen causes bases to be removed from nucleotides withinDNA, what repair system would fix this damage?Xeroderma pigmentosum is a genetic disease caused by an error in the nucleotide excision repair process that fixes damage to DNA by ultraviolet light. Studies have shown that it can result from mutations in any one of seven genes. What can you infer from this finding? A) There are seven genes that produce the same protein B) These seven genes are the most easily damaged by ultraviolet light. C) There are seven enzymes involved in the nucleotide excision repair process. D) These mutations have resulted from translocation of gene segments.Name the enzymes that cut the DNA at specific sequences and create sticky ends.
- A mutation occurs that changes a codon from UCC to UCA. It turns out that this codon is for an amino acid in the catalytic site of the enzyme DNA glycosylase, which is involved in DNA repair. What is the most likely outcome for an organism carrying this mutation? The mutation will be tolerated by the organism and will lead to no physical changes. Because the organism will no longer be able to perform base excision repair, the organism's DNA will mutate at a rapid rate. A disease such as cancer will develop rather quickly. Because the organism will no longer be able to perform base excision repair, the organism's DNA will mutate at a slow but steady rate. Over time, a disease such as cancer will develop. No answer text provided. ◄ Previous Next ▸The xenobiotic molecule ethyl chloride (CH3CH2Cl) is mutagenic. To what class of mutagenic substances does it belong?Explain why cuts are made on both sides of the damaged region of the DNA.
- Escherichia coli and other bacteria methylate adenines on the original strand to distinguish the original strand from the newly replicated strand of DNA. Why is this distinction important?Is there any situation in which DNA is made based on a RNA template? What is the enzyme involved?1) A mutation is a change that occurs in our DNA sequence, either due to mistakes when the DNA is copied or as the result of environmental factors. All BUT ONE of the statements below correctly describes or explains genetic mutations. A) Mutation can disrupt normal cell activity and cause diseases, like cancer. B) Mutations in parents' cells are then passed down to offspring via reproduction. C) Our cells can recognise any potentially mutation-causing damage and repair it before it permanent. D) Mutations can occur as the result of exposure to environmental factors such as smoking, toxins and radiation.
- The mutation for drug resistance in Mycobacterium tuberculosis, the bacteria that causes the disease tuberculosis, occurs within the chromosome, not in the plasmid. How do you think this would affect the likelihood of an individual bacterium becoming drug resistant?I mutation occurs such that the sequence now reads: CTA CTT TTT. A) Transcribe the short DNA sequence. B) translate this short DNA sequence. C) what type of point mutation is this? A mutation occurs such that the sequence now reads: CTA GTC TTT. 1)transcribe this short DNA sequence. 2. Translate this short DNA sequence. 3. What type of point mutation is this?Chemical mutagens often cause oxidation or deamination of DNA bases. This can lead to cancer by causing: A) Activation of replication. B) Activation of transcription. C) Non Watson-Crick base pairing. OD) Changes to cytochrome P450 enzymes. OE) Activation of translation.