What mutagen results to the formation of thymine dimers?
Q: What are some differences between class I and class II transposable elements?
A: Transposable elements are also known as jumping genes. They are the DNA sequences that can change…
Q: What is spontaneous mutation and how does it occur during Stress-Induced Mutagenesis.
A: The mutation is the sudden genetical changes that occurs in the DNA sequence and ultimately can or…
Q: What is a disorder caused by errors in transcription? What kind of error is involved?
A: Transcription is defined as the process by which the information present in a DNA strand is copied…
Q: What is an inactive gene?
A: A gene is a set of nucleotides that codes for a particular protein. Gene is functional unit of…
Q: What does histone acetylation favor?
A: The DNA (deoxyribonucleic acid) in cell is wrapped around proteins called histones. A DNA segment…
Q: What does histone acetylation do?
A: Histones proteins are chemically modified during replication and transcription. Chemical…
Q: Identify which mutagen is described by the following statement. Results to the formation of thymine…
A: Thymine dimer: a. It consists of two adjacent pyrimidine nucleotides, which are usually thymine…
Q: What could be the effect of a base substitution which prevents post-transcriptional removal of an…
A: A base substitution is a genetic mutation where a single nucleotide base is changed in the sequence…
Q: How did the back mutation in hisG affect the protein produced by this gene?
A: Back mutation or backward mutation is a kind of mutation which leads to reversion of the mutated…
Q: What is the difference between a germline mutation and a somatic mutation?
A: A mutation is a biological process occurring in the Deoxyribonucleic acid (DNA) sequence due to…
Q: What kind of protein required for the initiation of transcription by RNApolymerase ?
A: Introduction Transcription: it is the formation of transcript or RNA, which can be coding or…
Q: What mutations are possible in gene ZFPM2?
A: ZFPM 2 is a multi zinc finger protein. It helps in transcription regulation of certain genes by…
Q: What do the promoters of nearly all eukaryotic genes contain?
A: Promoter is a region in a gene where enhancer binds and transcription of gene starts. TATA…
Q: What types of histone modifications are responsible for epigenetic phenotypes?
A: Histones are the set of positively charged proteins. Histones are responsible for providing…
Q: What are Transposable Elements in Humans ?
A: A genome is all hereditary material of a life form. It comprises of DNA (or RNA in RNA infections).…
Q: How does histone acetyltransferase affect nucleosome structure and transcription?
A: Histone acetyltransferases (HATs) are enzymes that acetylate conserved lysine residuals on histone…
Q: Why are histone modifying enzymes important?
A: Chromosomes are thread-like structures that are present in the nucleus of the cell. The basic unit…
Q: How are histone tails modified?
A: Histones are a family of basic proteins, which associate with deoxyribonucleic acid (DNA) in the…
Q: What are histone acetyl transferases (HATs)?
A: Histones are proteins that are associated with DNA inside the nucleus of eukaryotic organisms. The…
Q: What does the White gene code for?
A: Genes are the structural and functional units of heredity that carry coded genetic information in…
Q: Why is DNA methylation considered an epigenetic phenomenon?
A: Deoxyribonucleic acid (DNA) is a biomolecule found in nearly all living organisms. The structure of…
Q: How will this mutation affect the golden retriever puppy?
A: Transcription is the process which makes mRNA from DNA in complementary manner. The A, U, G and C of…
Q: What is the effect of lacI- mutations?
A: The lactose operon or lac operon is an inducible operon system under dual – positive and negative…
Q: What is the major form of DNA methylation that is seen in eukaryotes? At what type of DNA sequence…
A: Step 1 Deoxyribonucleic acid (DNA) methylation is am epigenetic procedure that takes place by adding…
Q: What mutagen causes thymine dimers, and why does it kill cells?
A: A mutation occurs/happens when the sequence/structure of DNA changes. Mutations can occur/happens as…
Q: How does adding a methyl or acetyl group to a histone protein alter gene activity?
A: Histones are proteins, found in eukaryotic nuclei that order DNA into a shape. The histone molecules…
Q: What is methylation ?
A: The chromatin of a chromosome is made up of DNA and proteins. DNA carries the genetic instructions…
Q: what is the use of Histone deacetylase enzymes ?
A: DNA packaging is done in order to fit the linear DNA molecule inside the nucleus. It starts when DNA…
Q: Are transposable elements mutagens?
A: Transposition is connected to replication, recombination and repair. The way that how they are…
Q: what kinds of mutation might lead to splicing errors?
A: In living organisms, the genetic instructions for growth, development, functioning, and reproduction…
Q: What does the ABL gene do?
A: The deoxyribonucleic acid (DNA) is the hereditary material that transmits the genetic information…
Q: What are the two types of transposable elements?
A: Transposable elements are known as stretches of DNA molecules and they can move from one place to…
Q: how does cells prevent excess transposable elementmobilization.
A: Transposable elements (TEs) are the small segments of DNA that can move from one position to other…
Q: What effect does histone acetylation have on Gene 1?
A: Histone acetylation is an epigenetic modification of transcription . Histone acetylation is the…
Q: What are histone acetyltransferase (HAT) enzymes ?
A: Catalysts help to speed up chemical reactions. Substrates are the molecules on which enzymes can…
Q: Why does histone deacetylase action tend to repress transcription?
A: Transcription is the process of producing messenger RNA. This mRNA synthesizes proteins which is…
Q: What are conditions for Histone modification ?
A: The length of the DNA is way too high to accommodate in the nucleus. Therefore the DNA is packed to…
Q: What are the major types of covalent modification of histones?
A: The major types of covalent modifications of histone proteins are as follows:
Q: What is the role of the lacZ gene product, the enzyme B-galactosidase?
A: An operon is a functional unit of DNA (Deoxyribonucleic acid) containing a cluster of genes under…
Q: How are mutations in histone acetylation (HAT) genes linked to cancer?
A: HATs or histone acetyltransferase are enzymes that acetylate the lysine amino acid on histone…
Q: What is the major biological function of the Son-of-Sevenless (SOS) protein?
A: The name of this gene was based on the fact that the Sos protein it encoded was found to operate…
Q: What is the effect of acetylation of a lysine residue on the charge of a histone protein? Of lysine…
A: DNA methylation and lysine modifications comprise major epigenetic processes on chromatin, which…
Q: Do bacteria have transposable elements?
A: Bacteria are microscopic single-celled prokaryotes that thrive in diverse environmental conditions.…
Q: What are the consequences of histone acetylation?
A: Histones are highly basic proteins with a lot of lysine and arginine residues that are present in…
Q: What are the types of transposable elements in eukaryotic cells?
A: Introduction: Transposons are a region or DNA segment that possess the ability to replicate on its…
What mutagen results to the formation of thymine dimers?
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