Biochemistry usmle step 1 - Study guides, Class notes & Summaries

Cellular Biochemistry USMLE Step 1 Exam Questions and Answers 100% Solved p53 - Tumor suppressor gene that prevents cells from progressing from G1 to S phase - In response to DNA damage, p53 will call in DNA repair enzymes - If repair not possible, p53 will call in BAX that causes cell apoptosis Rb - Tumor suppressor gene that prevents cells from progressing from G1 to S phase - Normally unphosphorylated and binds to E2F - When phosphorylated by Cyclin-CDK, it releases E2F allowing pr...

Biochemistry USMLE Step 1 Questions Answered Correctly Latest Version Achondroplasia involves what defect? - Answers Cell-signlaling defect of fibroblast growth factor (FGF) receptor 3 Marfan's syndrome involves a mutation in what? - Answers Fibrillin gene Nucleoside + phosphate= ? - Answers Nucleotide Adenine and Guanine are in what type of nucleic acid? - Answers Purines Cytosine, Uracil and Thyamine arein what kind of nucleic acid? - Answers Pyrimidines Xanthine, hypoxanthine and ur...

Biochemistry USMLE step 1 Questions and Answers 2024.

Biochemistry USMLE Step 1 Questions and Answers 2024.

QUESTIONS AND ANSWERS

BIOCHEMISTRY USMLE STEP 1 EXAM QUESTIONS WITH CORRECT ANSWERS Achondroplasia involves what defect? -ANS_ Cell-signlaling defect of fibroblast growth factor (FGF) receptor 3 The splicesome exsises introns or exons? -ANS_ Introns What chemotherap agent inhibits thymidylate synthase (therefore decreasing pyrmidine synthesis for DNA)? -ANS_ 5-fluorouracil

BIOCHEMISTRY USMLE STEP 1 EXAM QUESTIONS WITH CORRECT ANSWERS

QUESTIONS AND ANSWERS

Biochemistry USMLE Step 1 Exam Questions With Answers histones are rich in which 2 AA's -ANSWER- lysine & argenine Barr bodies (what, type of chromatin) -ANSWER- inactive X chromosomes heterochromatin (highly condensed, sterically inaccessible) less condensed, transcriptionally active, sterically accessible chromatin -ANSWER- euchromatin DNA methylation at CpG islands -ANSWER- represses transcription "CpG Methylation makes DNA Mute" DNA methylation (what is methylated and why...

Biochemistry USMLE step 1 Quiz Complete Study Guide | Latest 2023/2024 histones are rich in which 2 AA's -- lysine & argenine Barr bodies (what, type of chromatin) -- inactive X chromosomes heterochromatin (highly condensed, sterically inaccessible) less condensed, transcriptionally active, sterically accessible chromatin -- euchromatin DNA methylation at CpG islands -- represses transcription "CpG Methylation makes DNA Mute" DNA methylation (what is methylated and why?) -- template st...