Which of the following is not a factor that increases mutations?   a. Fast rates of replication     b. Ionizing radiation     c. Repair enzymes     d. UV radiation     e. Replication error

Q: Sickle cell anemia is a disease caused by a mutation at the genotypic level. A person with two…

A: Sickle cell anemia is an autosomal recessive trait, in which the beta-chain of the hemoglobin gets…

Q: Which of the following is not an example of a  point mutation? a. nonsense b. sense c. antisense…

A: Mutation is a molecular process that occurs spontaneously as well as by the effect of mutagens. It…

Q: You have extracted a long piece of DNA from a human cell and you want to extract the gene of…

A: Genes are a series of instructions that govern how an organism looks, how it survives, and how it…

Q: In 1950, using “blender” experiment, Hershey and Chase demonstrated that DNA, not protein, is the…

A: Hershey and Chase came to the conclusion that the genetic substance was DNA rather than protein.

Q: DNA bases can be damaged by all of the following except:   a. Water   b. UV Light   c. Hyroxyl…

A: DNA (deoxyribonucleic acid) is the genetic material of an organism that is inherited from the parent…

Q: Which process in protein synthesis is most affected by a missense mutation?

A: Protein synthesis involves the central dogma which is : DNA - mRNA- Protein synthesis  DNA gets…

Q: The BRCA genes produce DNA repair proteins. Genetic testing is available that can determine if a…

A: BRCA1 (BReast CAncer gene 1) and BRCA2 (BReast CAncer gene 2) are proteins that aid in the repair of…

Q: Which type of mutation involves only one base pair? a. insertion b. deletion c. inversion d.…

A: A mutation occurs when DNA molecules are copied or replicated, resulting in DNA variants that can be…

Q: Induced mutations

A:

Q: Most genetically modified organisms are safe to consume but some can be dangerous to consume because…

A: Deoxyribonucleic acid (DNA) is a hereditary molecule that passes genetic information from one…

Q: Genetically engineered human insulin, human growth hormone, and human clotting factor VIII are made…

A: Answer is c.)  transgenic bacteria.

Q: Which of the following DNA repair systems may involve the removalof a segment of a DNA strand?a.…

A: Answer is b.)  Nucleotide excision repair.

Q: Match the E. coli mismatch repair enzyme on the left with the appropriate function on the right.…

A: DNA mismatch repair (MMR) is a highly conserved biological pathway that plays a key role in…

Q: Which of the following is not a factor that increases mutations?   A. replication errors   B.…

A: A mutation is a variation that happens in the DNA chain, due to errors during the DNA is duplicated…

Q: Which of the following changes is a transition base substitution?a. Adenine is replaced by…

A: The correct answer is (c) Guanine is replaced by adenine.

Q: DNA replicates by which of the following models? a. conservative b. semiconservative c. dispersive…

A: Answer is b.) semiconservative.

Q: Type of DNA spontaneous mutation that can explain why uracil is not found in DNA a.depurination…

A: DNA is a double helix structure which is composed of bases - adenine, thymine, cytosine and guanine.…

Q: Plasmids are circular extrachromosomal DNA in bacteria that play a role in:       d. degradation…

A: Plasmids are extrachromosomal circular DNA inserted within bacteria which provide certain advantage…

Q: You mix a culture of killed ampicillin-resistant Staphylococcus bacteria with some live E. coli…

A: Recombination in bacteria: a. The term recombination refers to the exchange of genetic material…

Q: after a successful infection by a viral particle, it integrates its genome into the host DNA. which…

A: During the infection, the viral particle successfully used to integrates its genome into the host…

Q: enzymes will form the m-RNA molecule?

A: The correct answer is option d). RNA polimerases II

Q: The experiments by Hershey and Chase helped confirm that DNA was the hereditary material on the…

A: Answer: Introduction:The Hershey–Chase experiments were a conducted experiment in 1952 by Alfred…

Q: In nucleotide excision repair in E. coli, the function of the UvrA/UvrB complex is toa. detect DNA…

A: Deoxyribonucleic acid (DNA) is a double-stranded molecule. DNA replication is the process by which…

Q: The BRCA genes produce DNA repair proteins. Genetic testing is available that can determine if a…

A: Cancer is the condition in which unhindered proliferation of normal cell occurs. Basically, such…

Q: You are an expert in DNA-repair mechanisms. You receive a sample of a human cell line derived from…

A: In normal conditions, the cells are capable of fixing the damages caused to DNA before problems…

Q: Which of the following matches is not correct? a. Template = Double stranded DNA b. Primer = short…

A: Introduction DNA is the molecular structure that is composed of a pair of polynucleotide chains and…

Q: The anchor used to start a new DNA strand is called a ________.   a. trigger   b. first   c. starter

A: The process of formation of new DNA is called DNA replication.  DNA is complex structure and cannot…

Q: Synthesis of proteins occurs by the process of A. replication B. cytokinesis  C. translation D.…

A: Synthesis of proteins occurs with the help of transfer RNA, messenger RNA and ribosomes. These…

Q: The enzyme ________ separates the TWO DNA strands of the double helix.     a. helicase   b. ligase…

A: Deoxyribonucleic acid (DNA) is the functional genetic information-carrying molecule present in cells…

Q: Which of the following DNA molecules is complementary to the sequence: 5'-ATTGCGTAC-3'? O a.…

A: Structure of DNA and how nucleotide bases pair with each other. DNA, or deoxyribonucleic acid, is…

Q: What kind of mutation normally has no consequence? please explain the answer a.transversions…

A: Any change in the DNA sequence is considered as mutation. It can be large chromosomal aberration or…

Q: A.) Chemical changes to the DNA caused by mutations can cause hazardous damage to the DNA. B.)…

A: DNA:  DNA is a polymer made up of two polynucleotide chains that coil around each other to form a…

Q: a mutation in dna that adds +1 ot -1 nucleotide or +2 or -2 nucleotides is called a______? (choose…

A: Given condition: a mutation in dna that adds +1 ot -1 nucleotide or +2 or -2 nucleotides.  Mutation…

Q: DNA is directly involved as a template in the following processes, except _________. a. mutation b.…

A: Deoxyribonucleic acid, or DNA. It includes units known as nucleotides, which are biological building…

Q: The enzyme known as ________ uses ________ and separates the DNA strands at the replication fork. a.…

A: DNA Replication is the biological process of generating exact copies of DNA from the original DNA…

Q: Which of the following is not depicted in the diagram attached? A. Okazaki fragment B. Replication…

A: Origin of replication is not depicted in the diagram. An origin of replication is a sequence of DNA…

Q: The most common source of DNA mutation is _____; however, these mistakes are typically corrected.​…

A: To understand the structure of nucleic acid, it is necessary to first understand the structure of…

Q: Which of the following mutations is most likely?   a. Cytosine to Adenine   b. Guanine to Adenine…

A: When changes occur in our DNA sequence because of several reasons such mistakes while DNA copying…

Q: One of the mechanisms that leads to the DNA mutations is a process known as DNA polymerase slippage…

A: DNA slippage is a type of DNA strand misfiring mechanism that occurs in the repeated nitrogenous…

Q: Which of the following are strategies used by stem cells to reduce risk of alterations in their…

A: Introduction: Human stem cells are distinctive cells with the potential to distinguish into a wide…

Q: Which of the following is defined as transformation?

A: Which of the following is defined as transformation?   Answer. Option (C) . Free-floating DNA is…

Q: For each statement below indicate whether it is true or false: A. Strand discrimination during the…

A: A In eukaryotes, nicks (single-stranded breaks) that are unique to recently manufactured DNA are…

Q: Define the following terms: a. A-DNA b. B-DNA c. pseudogene d. cruciform e. intron

A: Terms to be defined in this question are as follows: a. A-DNA: A conformation of DNA which differ…