Polymerases - Study guides, Class notes & Summaries

are enzymes that catalyze the synthesis of RNA using a DNA template. Correct Answer-RNA polymerases Outside of the plasma membrane, plant cells are surrounded by a cell wall that is mostly composed of Correct Answer-cellulose is the organelle that is the site of photosynthesis in plants. Correct Answer-chloroplast The cytoskeleton of eukaryotic cells is composed primarily of three types of protein fibers - intermediate filaments, actin filaments, and Correct Answer-microtubules Cells...

APMLE Part 1 Exam- Pharm Test || With Complete Solutions (100% Accurate) APMLE Part 1 Exam- Pharm Test || With Complete Solutions (100% Accurate) Erythromycin - ANSWER - Macrolide antibiotic: *inhibitor of protein synthesis (50S)*; activity includes gram− positive cocci and bacilli: *Used for odd ball diseases*: Mycoplasma Infections, Legionnaires disease, Chalamydial infections, Diptheria, Pertussis) Tox: cholestatic jaundice, inhibits liver drug−metabolizing enzymes, interaction...

MB (ASCP) () TRANSLOCATIONS, DISEASES, PHARMA, POLYMERASES, & MORE

Polymerases/Restriction Enzymes (MB ASCP) Questions and Answers 100% correct α (Eukaryotic) DNA Polymerase Alpha Lagging strand synthesis during DNA replication. Found in Nucleus- Family B β (Eukaryotic) DNA Polymerase Beta DNA Repair mechanisms, and Replication restart at nicks and lesions Found in Nucleus Family X δ (Eukaryotic) DNA Polymerase Delta Primary DNA polymerase- synthesizes leading strand. Found in Nucleus- Family B ε (Eukaryotic) DNA Polymerase...

List the major steps of the "central dogma" of molecular biology. What are the products of each step? Correct Answer-Replication --> DNA Transcription --> RNA Translation --> protein Once the DNA strands unwind and separate, DNA polymerases copy the DNA. What are they copying? What characteristics of DNA necessitates the need for leading and lagging strands to copy the DNA? Correct Answer-They are copying ____. DNA is antiparallel so the mode of synthesis occurs in 2 different ...

A heritable change in DNA sequence (or RNA sequence in RNA viruses) a. anomaly b. mutation c. DNA damage d. pyrimidine dimer correct answersb. mutation As a result of mistakes made by the RNA dependent RNA polymerases, influenza viruses demonstrate: a. antigenic confusion b. antigenic shift c. antigenic drift d. lysis correct answersc. antigenic drift Newly formed influenza viruses would naturally clump together if _____________is inhibited by "Tamiflu": a. sialic aci...

Helicase Ans- Catalyzes ATP-dependent unwinding of DNA double helices What is the helicase in E. Coli? Ans- DNAB Single-Stranded Binding Protein Ans- Binds to unwound strands of DNA to prevent reannealing DNA Polymerase Ans- Enzyme responsible for DNA replication Uses ssDNA as a template and makes a complimentary strand by polymerizing deoxynucleotides Synthesis in 5' to 3' direction List the DNA polymerases in E. Coli Ans- Pol I, II, III DNA pol I Ans- Removes RNA primers and f...

MCB4304 Exam 2 Final Questions & Answers 2024/2025 When trying to solve a protein structure, why is it necessary to grow protein crystals prior to X-ray-crystallography? - ANSWERSthe proteins must all be oriented in the same manner in the unit cell. The helix-turn-helix DNA binding motif is a feature exclusive to prokaryotes. - ANSWERSfalse Helix-turn-helix DNA binding motifs exclusively interact with DNA base pairs. - ANSWERSfalse DNA binding proteins can interact with the DNA str...

MB (ASCP) 2022 - Translocations, Diseases, Pharma, Polymerases, & more Chronic Myeloid Leukemia (CML) t(9;22) BCR-ABL translocation Ewing sarcoma t(11;22) EWS-FLI1 Acute Lymphocytic Leukemia (ALL) t(9;22) BCR-ABL p190 protein Follicular Lymphoma t(14;18) BCL2 translocation Mantle Cell Lymphoma t(11;14) bcl-1 translocation CCND1-IgH Burkitt Lymphoma t(8;14) MYC gene translocation Rhabdomyosarcoma (alveolar); Cancer/solid tumor t(2;13) or t(1;13) PAX3-FKHR and PAX7-FKHR "ARMS" translocatio...

Which of the following build(s) new strands of DNA? - ANSWER DNA polymerases Which statement about DNA replication is CORRECT? - ANSWER The leading strand is built continuously, and the lagging strand is built in pieces. The molecule that seals the gaps between the pieces of DNA in the lagging strand is - ANSWER DNA ligase. Which of the following events occurs during transcription? - ANSWER A molecule of RNA is formed based on the sequence of nucleotides in DNA. mRNA? - ANSWER mRNA m...