Dna topoisomerase - Study guides, Class notes & Summaries

ADVANCED PLACEMENT (AP) BIOLOGY: Dna, Rna, And Proteins 181 Questions Correctly Answered | 100% Rated Question 1 Which type of mutation does not change an organism's phenotype despite changing its genotype? Possible Answers: Frameshift Missense Silent Nonsense Correct answer: Silent Question 2 What would be an immediate consequence for a cell with a mutant version of DNA polymerase III that has lost its proofreading function? Possible Answers: Cancer Inability to complete th...

Bio 181 Exam #4Suppose you are provided with an actively dividing culture of E. Coli bacteria to which radioactive thymine has been added. What would happen if a cell replicates once in the presence of this radioactive base? A. One of the daughter cells, but not the other, would have radioactive DNA B. Neither of the two daughter cells would be radioactive C. All four bases of the DNA would be radioactive D. Radioactive Thymine would pair with nonradioactive guanine E. DNA in both daughter ...

BRCC Biology 1033 Ch 11 Latest Update Graded A+ What are the fundamental components of DNA and RNA? - A) Proteins, lipids, and carbohydrates - B) Nucleotides - C) Amino acids and sugars - D) Phosphates and enzymes Explanation: Nucleotides are the basic building blocks of DNA and RNA, consisting of a sugar, phosphate group, and nitrogenous base. How do nucleotides connect to form DNA strands? - A) Hydrogen bonding - B) Covalently - C) Ionically - D) Magentically 2 ...

Diagnosing Mixed Connective Tissue Disease Correct Answer-Anti-U1-RNP + at least 3 of the following: - Swollen hands or fingers - Myositis or myalgia - Synovitis - Raynaud's phenomenon Drug-induced lupus antibody Correct Answer-DNA-histone complex (95%) SLE antibody Correct Answer-ds DNA(97%), Smith Systemic sclerosis antibody Correct Answer-RNA polymerase II and II Scl-70/anti-topoisomerase I Sjogren's syndrome Correct Answer-anti-SS-Ro/SS-La (SSa and SSb) Limited sclerod...

MMSC490 Exam 2 Questions with Complete Answers Which eukaryotic DNA polymerase replicates the lagging strand in the 3ʹ to 5ʹ direction? a. α b. γ c. δ d. None of the above; the lagging strand is replicated in the 5ʹ to 3ʹ direction. - Answer ️️ -d. None of the above; the lagging strand is replicated in the 5ʹ to 3ʹ direction. DNA polymerases can synthesize DNA: a. de novo, by catalyzing the polymerization of free dNTPs. b. by adding dNTPs to complementary dNTPs on a single-...

SFSU Biology 230 Final Exam with complete solutions What are the two components of the proton-motive force? a. pH gradient and equilibrium b. pH gradient and voltage c. voltage and ATP d. voltage and lipid-soluble agents - ️️ b. pH gradient and voltage Which molecule is responsible for unwinding DNA supercoils before replication in E. coli? a. DNA helicase b. DNA ligase c. DNA polymerase III d. Gyrase e. Topoisomerase I/II - ️️ a. DNA helicase What is the likely cause of an ...

Technologist in Molecular Biology, MB(ASCP) board exam prep 2024 with 100% Correct Answers Pyrimidine - Answer ️️ -One carbon ring Cytosine, Thymine, Uracil What is the function of mRNA? - Answer ️️ -Carries genetic info out of nucleus Transcript translated to protein What is the function of tRNA? - Answer ️️ -Carries aa to ribosome Anticodon pairs with codon on mRNA strand What is the function of rRNA? - Answer ️️ -part of ribosome structure most abundant RNA coordina...

ASCP Molecular Biology Certification Exam 2024 Pyrimidine - Answer ️️ -One carbon ring Cytosine, Thymine, Uracil Purine - Answer ️️ -Two carbon rings Adenine, Guanine How are nucleotides joined together? - Answer ️️ -Condensation to form phosphodiester bond What is the function of mRNA? - Answer ️️ -Carries genetic info out of nucleus Transcript translated to protein What is the function of tRNA? - Answer ️️ -Carries aa to ribosome Anticodon pairs with codon on mRNA ...

ASCP Molecular Biology Certification Exam 2024 Pyrimidine - Answer ️️ -One carbon ring Cytosine, Thymine, Uracil Purine - Answer ️️ -Two carbon rings Adenine, Guanine How are nucleotides joined together? - Answer ️️ -Condensation to form phosphodiester bond What is the function of mRNA? - Answer ️️ -Carries genetic info out of nucleus Transcript translated to protein What is the function of tRNA? - Answer ️️ -Carries aa to ribosome Anticodon pairs with codon on mRNA ...

DNA Replication Written Exam . DNA replication steps 1) Helicase- unwinds the parental double helix 2) DNA topoisomerase - upstream of helices alleviating torsional strain 3) Single-strand binding proteins (SSBP) stabilize unwound DNA, aided by DNA gyrase (topoisomerase). 4) Primase synthesizes a short RNA primer for DNA polymerase to bind to in the 5' to 3' direction to start replication on each strand. 5) DNA polymerase synthesizes the leading strand in 5' to 3' direction...