Acetylation Study guides, Class notes & Summaries

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 ...

PMC Prep Exam 4 Questions & Answers 2024/2025 Aspirin MOA - ANSWERSinhibits the synthesis of thromboxane A2 (TXA2) by irreversible acetylation of COX-1 -inhibits platelet activation and aggregation Aspirin Drug Interactions - ANSWERSNSAIDs compete for binding sites -use APAP or narcotic analgesics Aspirin Toxicities - ANSWERS-bleeding -hemorrhagic stroke -can cause asthma and hypersensitivity in aspirin-intolerant pts What are the thienopyridines? - ANSWERSClopidogrel, Prasugre...

USMLE Biochemistry Exam Questions with Correct Answers Heterochromatin - ANSWER Highly Condensed DNA Transcriptionally inactive Ex. Barr bodies (inactivated X chromosomes) Euchromatin - ANSWER Less condensed DNA Transcriptionally active DNA Methylation - ANSWER Occurs at *CpG Islands* to repress transcription 'CpG Methylation Makes DNA MUTE' Template strand *cytosine* and *adenine* are methylated, which allow mismatch repair enzymes to distingu...

Pyrimidine dimers formed in DNA due to UV radiation can be repaired by? SOS repair Double strand break repair Mismatch repair Photoreactivation repair (nucleotide excision repair) Base excision repair - CORRECT ANSWER Photoreactivation repair (nucleotide excision repair) Which of the following repair mechanisms uses methyl groups to distinguish between parental and daughter strands? Answers: Mismatch repair Photoreactivation repair (Nucleotide excision repair) SOS repair Doub...

1) The nucleotide sequence of the attenuator region in the leader of the trp mRNA - a) Contains features of a transcription termination site Depurination - the loss of a purine base from a nucleotide Deamination - the removal of an amino group from an organism, particularly from an amino acid attenuator region - region of RNA sequence that forms an alternate secondary structures that govern the level of transcription of attenuated operons. Transcription factors and other regulatory p...

What is an example of incomplete dominance? - ️️A red and white snapdragon making a pink offspring What is an example of co-dominance? - ️️Blood cells. What is Pleiotropy? - ️️When a gene affects more than one phenotypic character. What is the norm of reaction? - ️️The range of phenotypic possibilities What are some example of polygenic inheritance? - ️️Skin color and height Norms of reactions are broadest for _____________ characters - ️️polygenic Gene...

USMLE Step 1- Biochemistry Questions and Answers(2022)Answered test Histones are rich in which 2 amino acids? Ans- Lysine Arginine What histone protein is responsible for binding to the nucleosome and to the "linker" DNA thereby stabilizing the chromatin fiber? Ans- H1 When does DNA and histone synthesis occur in the cell cycle? Ans- S-phase Will the following be increased or decreased or neutral in heterochromatin? methylation acetylation Ans- methylation increased acety...

Examples: Indirect Thrombin Inhibitors - Answer-Heparin, Lovenox, Fondaparinux Example: Vitamin K Antagonists - Answer-Warfarin Examples: Factor Xa Inhibitors - Answer-Rivaroxaban, Edoxaban, Apixaban Think "aban" Examples: Direct Thrombin Inhibitors - Answer-Dibigatran, Argatroban Examples: Fibrinolytics - Answer-Streptokinase, Urokinase, Alteplase, Reteplase, Tenecteplase Thank "ase" Examples: Antiplatelets - Answer-Aspirin, Clopidogrel Examples: Platelet Glycoprotein IIb/IIIa Recep...

UCI BIO 93 Final Exam Questions and Answers 100% Pass What is an example of incomplete dominance? - Correct Answer ️️ -A red and white snapdragon making a pink offspring What is an example of co-dominance? - Correct Answer ️️ -Blood cells. What is Pleiotropy? - Correct Answer ️️ -When a gene affects more than one phenotypic character. What is the norm of reaction? - Correct Answer ️️ -The range of phenotypic possibilities What are some example of polygenic inheritance? -...

USMLE Biochemistry Exam Questions with Correct Answers Heterochromatin - ANSWER Highly Condensed DNA Transcriptionally inactive Ex. Barr bodies (inactivated X chromosomes) Euchromatin - ANSWER Less condensed DNA Transcriptionally active DNA Methylation - ANSWER Occurs at *CpG Islands* to repress transcription 'CpG Methylation Makes DNA MUTE' Template strand *cytosine* and *adenine* are methylated, which allow mismatch repair enzymes to distingu...