Which type of mechanism best repairs thymidine dimers caused by exposure to UV light? a. Nucleotide excision repair b. Base excision repair c. Mismatch repair d. NHEJ

Q: Describe the role of mismatch repair (MMR) in DNA repair.Why do mutations in MMR proteins increase…

A: DNA mismatch repair is a system for recognizing and repairing erroneous insertion, deletion, and…

Q: What is a biomarker? a. the color coding of different genes b. a protein that is uniquely produced…

A: Answer is b.)

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: Individuals with Turner’s syndrome inherit what chromosomes? a. XX b. XO c. XXY d. XXX   What is the…

A: Genetic disorders are those which can be inherited. These disorders are the results of changes in…

Q: Write the reaction that proves that UV attacks DNA.

A: DNA is made of two complementary strands intertwined into a double helix. The hereditary message is…

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: List the steps in the correct order of DNA mismatch repair in E. coli

A: The DNA mismatch repair process involves the correction of errors in the newly synthesized DNA. The…

Q: Targeting topoisomerase or DNA gyrase with an inhibitory antibiotic would inhibit which of the…

A: The bacteria are the unicellular prokaryotic organism that maintains a definite shape since it…

Q: What technique can be used for studying the gene for cystic fibrosis

A:

Q: Which protein directs the recombination exchange with a DNA that has failed a complete DNA…

A: DNA unwinds and the two strands detach at the "replication origins" a little at a time, like a…

Q: Question 10. After liquid atomization (nebulization) of DNA, it is necessary to repair the ends of…

A: Nebulization is a process of fragmenting DNA into smaller pieces by exposing it to a high-pressure…

Q: Chronic myelogenous leukemia is usually associated with which type of chromosome rearrangement? a.…

A: Genetics is the branch of biology which deals with genes, heredity, and genome in the organism.…

Q: Compare and contrast the activity of a topoisomerase and a helicase in the context of DNA…

A: The process of replication of DNA is a semi-conservative method, which suggest that the parental…

Q: A student wants to observe how the environment of bacteria affects gene expression. How should the…

A: Option B i.e. exposing same species of bacteria to the different carbohydrate in each sample is the…

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: Draw a diagram depicting the 4 steps of base excision repair, and give a short description of what…

A: Base excision repair is a cellular mechanism that is studied in the fields of biochemistry and…

Q: Using a diagram, and 3-5 sentences, explain the relationship between cell immortality and telomerase…

A: Each time a cell divides, the telomeres get shorter. Telomeres are a region of repetitive nucleotide…

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: DNA replication is critical to the growth of microbes. Describe the mechanism used by prokaryotes to…

A: DNA polymerase III replicates prokaryotic DNA at a rate of 1000 nucleotides per second in the 5′ to…

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: What was the significance of Meselson and Stahl’s experiments on DNA replication using the heavy…

A: Replication is the preliminary stage of inheritance and the central dogma describes how DNA makes…

Q: A patient presents with the Sickle Cell Trait. How did this disease develop in the DNA and how does…

A: Sickle cell trait is hereditary disease commonly observed in the individuals inhabiting Africa. It…

Q: Match the substance to it's function. B. v Prevents supercoiling/Overwinding of the DNA A.…

A: Nucleosomes are the basic packing unit of DNA built from histone proteins around which DNA is…

Q: Describe the role of mismatch repair (MMR) in DNA repair. Why can mutations in MMR increase the risk…

A: Mismatch repair of DNA is a repair system that removes and repairs erroneous insertions,…

Q: The RNA primer at the beginning of each Okazaki fragment is removed by

A: Introduction: The small pieces of the discontinuously synthesized DNA are basically known as Okazaki…

Q: Which type of mutation produces the same protein despite a change in the DNA? A. nonsense B.…

A: The mutation is defined as an alteration or change in the nucleotide sequence of the organism's…

Q: DNA Polymerase holoenzymes used for DNA replication recognizes   A. double-stranded sequences as…

A: DNA polymerase III holoenzyme (Pol III HE) is an enzyme that catalyzes elongation of DNA chains…

Q: What term is used to describe the fact that the 5' end of one strand lines up with the 3' end of the…

A: DNA stands for deoxyribonucleic acid. It is a genetic material present in the cell.

Q: Primers are synthesized where on the lagging strand? a. Only at the 5′ end of the newly synthesized…

A: DNA replication is the biological process that results in producing two identical replicas of the…

Q: There is segment of double-stranded DNA that is found to have a total of 140 bases. If 45 of those…

A: DNA( deoxyribonucleic acid )  is two stranded ladder like structure which contain four bases :-…

Q: Choose the combination of answers that most accurately completes the statement.R factors are…

A: A small, extra chromosomal DNA molecule within a cell is known as plasmid . It can be physically…

Q: Cancer cells can divide much longer than most other cells. One possible reason is the presence of…

A: Cancer is a disease that is associated with uncontrolled division of cells and invasion of…

Q: What will most likely be the effect of the change in the DNA molecule? *   A. the change will cause…

A: The DNA content of the organism represents the total genetic content and so the total genes present…

Q: Which of the following complex compound is used in the treatment of cancer?A. Cis platin B.…

A: Cancer: An abnormal growth of cells which tend to proliferate in an uncontrolled way and, in some…

Q: Human beings with the inherited disease xeroderma pigmentosum have serious problems with lesions on…

A: Xeroderma pigmentosum is an inherited disease. It is characterized by an extreme sensitivity to…

Reproductive system infection

The biological process through which parents produce new children is called reproduction. A reproductive system is a group of internal and external organs that collaborate to allow males and females to reproduce. Many experts believe that the reproductive system is one of the most important systems in the body due to its crucial function in the survival of the species. Among the body's basic systems, the reproductive tract is the one that differs the most between sexes, and it is also the only one that does not operate until puberty.