Which of the following can only arise as a spontaneous mutation? Group of answer choices Gamma rays penetrate tissue and damage DNA Base analogs cause DNA to pair with the wrong base. Reactive forms of oxygen damage DNA In replication, thymine mispairs with guanine Nitrous acid deaminates cytosine

Q: Every DNA sequence that can serve as an origin of replication is found to contain a DNA strand that…

A: The DNA double helix is unwrapped at precise locations termed origins, where replication begins.…

Q: Which type of DNA variant is most likely to result from slippage of DNA polymerase during…

A: DNA sections with direct repeats of 1-4 bases, also known as tandem repeats, are typically affected…

Q: Which of the following is considered to be a spontaneous source of mutations that impact the genome?…

A: Any Change in the genetic material, which is not caused by recombination, that leads to altered…

Q: Which of the following DNA repair mechanisms relies on homologous DNA recombination for the repair…

A: DNA repair mechanisms relies on homologous DNA recombination for the repair processes are :  SoS…

Q: Polymerase chain reaction is— 
     a reaction involving a chain of different types of polymerases…

A: PCR is a technique to make many copies of DNA in vitro. It relies on thermostable Taq polymerase and…

Q: In DNA replication new molecule is form different from previous only one strand is replicated both…

A: DNA- Deoxyribonucleic acid is a molecule containing two strands. These two strands coil up together…

Q: Mutation a change in the DNA Point mutations - when a single nitrogen base is deleted, inserted or…

A: The key information we need for understanding mutation is the specific base pairings. The specific…

Q: Which of the following is not a factor that increases mutations?

A: Mutation  Mutation can be defined as the structural change in arrangement of DNA base pairs.…

Q: Eddie the E. coli bacterium cell is suspicious that his DNA contains a thymine dimer. What is the…

A: Here in the question it is described that DNA thiamine dimer is formed. And it's proposed that DNA…

Q: The strand of DNA that is replicated continuously in the 5' to 3' direction is referred to as:…

A: DNA replication: DNA replication is a fundamental biological process in which a cell makes an exact…

Q: What type of mutation occurred at mutation #2 and does it cause a frameshift? Sequence Original…

A: Mutation is a change in nucleotide sequence of DNA. There are various types of mutations. Point…

Q: Vhich of the following describes the DNA molecule? A DNA molecule is single-stranded and is composed…

A: DNA is self replicating bar molecules that are present in the chromosomes and carry genetic…

Q: A nonsynonymous mutation is also referred to as missense mutation. Which of the following correctly…

A: Normal DNA contains a particular sequence of DNA. If the sequence of DNA is changed due to external…

Q: Which of the following DNA repair systems could be used to repair the damage caused by UV light…

A: Due to the exposure to the UV rays, the structure of DNA gets distorted causing bends which leads to…

Q: Which of the following repair pathways produces more mutations during the process of repair?…

A: DNA repair is a collection of processes by which a cell identifies and corrects the damage to the…

Q: Which of the following point mutations would properly be defined as a transition mutation?  the…

A: The substitution mutations of DNA are of two types: Transitions and Transversions. Transitions are…

Q: What is meant by propeller twisting in DNA? How it affects the overall structure and function

A: DNA is the genetic material of almost many living organisms. The genetic information in the DNA is…

Q: Which would need to occur to replicate DNA? (select all that apply)  Group of answer choices the…

A: DNA replication is the process by which the double-stranded DNA molecules replicate to produce…

Q: In humans, sickle-cell anemia and hemophilia represent which type of mutations?     Loss of…

A: Mutations are of different types. Mutations are change in the sequence of DNA which may cause the…

Q: What would fit best for right properties of dna?

A: Introduction: DNA may be a chemical basis of heredity and will be thought to be the depository…

Q: ntify the type of mutation and how it would affect the protein made (amino acid) if the following…

A: DNA is what is inside the nucleus of mostly all cells. It carries the genetic information which is…

Q: The DNA conformation which is observed at high salt concentrations and which plays a possible role…

A: All known living things, including many viruses, carry the genetic instructions necessary for their…

Q: Which one of the following options most accurately states the number of replication forks expected…

A: Replication is the process of formation of an exact copy or replica of DNA. It occurs under the…

Q: Which of the following is involved in the repair of cyclobutane pyrimidine dimers?   DNA pol I…

A: The process by which a cell uses a series of special enzymes to repair mutation (changes ) in DNA…

Q: Select the examples of mutation. A gene is copied twice during DNA replication. Several base pairs…

A: The change in DNA sequence of base pair results in mutation. It may or may not change the sequence…

Q: methylation in prokaryotes is FALSE?   DNA methylation is catalyzed by DAM methylase on adenine…

A: Replication is a semi conservative process in which one strand is derived from the parent and the…

Q: What is the significance of the complementarity of the two strands of DNA? It prevents mutations…

A: The question is asking about the importance of the complementarity of the two strands of DNA.…

Q: None

A: Neutral mutations depend on the degeneracy of the genetic code.Neutral mutations are frequently the…

Q: The exonuclease activity of DNA Pol III increases its:   Affinity for hemimethylated DNA   Accuracy…

A: A cell generates a perfect copy of its DNA through the natural procedure of DNA replication…

Q: Muller's ratchet can be reversed by mutation. Group of answer choices True False

A: The irreversible accumulation of harmful mutations in asexual populations is known as Muller's…

Q: None

A: Here is summary of the different DNA repair systems: Step 1. Mismatch RepairMismatch repair (MMR)…

Q: Why is an RNA primer necessary for DNA replication?     The RNA primer is necessary for the…

A: Introduction DNA Replication Is The Process Through Which DNA Generates Multiple Copies Of Itself.…

Q: What is the consequence of an error that is not corrected during DNA replication? Choose one: It…

A: The question is asking about the consequences of an uncorrected error during the process of DNA…

Q: What are the consequences of having thymine dimers formed in DNA? They prevent the transcription…

A: They prevent the transcription of DNA into RNA .  They cause double -stranded DNA breakage.  They…

Gene Interactions

When the expression of a single trait is influenced by two or more different non-allelic genes, it is termed as genetic interaction. According to Mendel's law of inheritance, each gene functions in its own way and does not depend on the function of another gene, i.e., a single gene controls each of seven characteristics considered, but the complex contribution of many different genes determine many traits of an organism.

Gene Expression

Gene expression is a process by which the instructions present in deoxyribonucleic acid (DNA) are converted into useful molecules such as proteins, and functional messenger ribonucleic (mRNA) molecules in the case of non-protein-coding genes.