Dna coiling - Study guides, Class notes & Summaries

FINAL EXAM NR507 / NR 507 (Latest 2023 / 2024) : Advanced Pathophysiology - Chamberlain What are the properties of a eukaryotic cell - ANSWER • Well define nucleus. • cells are larger and have more extensive intracellular anatomy and organization than do prokaryotes. • cells bind with deoxyribonucleic acid (DNA) and are involved in the super coiling of DNA. • cells have several chromosomes, protein producti...

Organization of organisms - Atom to Element to molecules to cells to tissue to organs to organ systems to organism 3 domains used to classify life - Domain Bacteria, Domain Archea, Domain Eukarya 3 levels of Protein organization - Primary, Secondary and Tertiary structure 4 Macro molecules - Carbs, Lipids, Proteins, Nucleic Acids Definition of Biology - Study of life Differences of DNA and RNA - DNA has A,C,G,T while RNA has A,C,G,U Fifth basic characteristic of life - Reproduce and grow ...

Overall organizational structure of the human chromosome - correct answer normally contain a single, immensely long DNA double helix; to avoid tangling and to manage the long chain efficiently they are complexed with various proteins and sometimes noncoding RNAs to form chromatin that undergoes different levels of coiling and compaction Chromatin - correct answer the structure of DNA complexes with pro...

PORTAGE LEARNING BIOD 101 MODULE 4 EXAM QUESTIONS WITH COMPLETE SOLUTIONS Nitrogenous bases of DNA Adenine Guanine Thymine Cytosine Contain 2 carbon-nitrogen rings, and 4 nitrogen atoms Purines - A and G Contain 1 carbon-nitrogen ring, and 2 nitrogen atoms Pyramidines - T and C Deoxyribose sugar chemically linked to each base in DNA Nucleoside base + deoxyribose Nucleotide base + deoxyribose + phosphate group complementary pairs purine always pairs with pyramidine (T+A), (C+...

PORTAGE LEARNING BIOD 101 MODULE 4 EXAM QUESTIONS WITH COMPLETE SOLUTIONS Nitrogenous bases of DNA Adenine Guanine Thymine Cytosine Contain 2 carbon-nitrogen rings, and 4 nitrogen atoms Purines - A and G Contain 1 carbon-nitrogen ring, and 2 nitrogen atoms Pyramidines - T and C Deoxyribose sugar chemically linked to each base in DNA Nucleoside base + deoxyribose Nucleotide base + deoxyribose + phosphate group complementary pairs purine always pairs with pyramidine (T+A), (C+...

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...

BCH 5413: 1-4 TEST QUESTIONS WITH ALL CORRECT ANSWERS Name 3 characteristic of Z-DNA - Answer-* Left-handed helix * 12bp per helical turn * Major groove flattened, nearly gone Fragile DNA is associated with - Answer-AT-rich cruciform To increase the melting temperature of DNA, you need to increase which two? a) bases b) salt c) phosphate d) AT e) coiling f) GC - Answer-b) and f) What does the genome consist of? - Answer-Chromosomes (linear DNA molecules with many genes) ...

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...

Prokaryotic cell - Answer-Single-celled miroorganism with no membrane bound organelles Eukaryotic cell - Answer-Has a nucleus and membrane bound organelles Cabpsule - Answer-Only in plants, jelly-like fluid, protects cell wall Nucleiod - Answer-Singular circlular molecule of DNA Flagellum - Answer-Protein fiber, movement Plasma membrane - Answer-Controls what goes in and out Cilia - Answer-Sweep materials off cell surface Rough ER - Answer-Ribosomes, materials for protein synthesis Smoot...

BIO 1406 - lab exam 3 questions and answers already passed Mitosis division of a cell nucleus in which the chromosomes number stays the same Mitosis purpose increase cell number during growth, development and repair Cytokinesis division of cytoplasm sister chromatids duplicates of an original chromosome centromere region whats holding chromatids together spindle football shaped structure composed of microtubules. involved in moving chromosomes during cell division centri...