Supercoiling - Study guides, Class notes & Summaries

Helicase - Unwinds DNA in both directions Gyrase - topoisomerase that relieves supercoiling ahead of replication fork Single Stranded Binding proteins do what? - Stabilize single stranded DNA Primase - Enzyme that makes RNA primers DNA polymerase cannot? - Reconstruct the 5' end of a DNA strand this poses problems for linear chromosome integrity Telomeres - Repetitive DNA sequences TTAGGG -no protein coding -binds two types Two types of proteins that binds in telomeres - ...

it is true that a eukaryotic cell. contains structures called organelles Eukaryotic cells contain organelles and histones, they have a well-defined nucleus, and are larger than prokaryotic cells. The function of a histone found in a eukaryotic cell focuses on cellular deoxyribonucleic acid (DNA) folding The histones are binding proteins that cause the supercoiling of DNA into chromosomes and do not affect cellular division, movement, or activities. An organelle that is responsible for th...

What is not a function of a prokaryotic cell membrane? (A) Protein synthesis (B) Protein secretion (C) Respiratory electron transport (D) Osmotic barrier (E) Lipid synthesis correct answers (A) Protein synthesis Which of the following cell components would not be found on a gram-positive, circular shaped bacterium? (A) Murein (B) Teichoic Acids (C) S layer (D) Flagellum (E) Outer Membrane correct answers (E) Outer Membrane Which structure provides resistance to desiccation? ...

Pyrimidine - One carbon ring Cytosine, Thymine, Uracil Purine - Two carbon rings Adenine, Guanine How are nucleotides joined together? - Condensation to form phosphodiester bond What is the function of mRNA? - Carries genetic info out of nucleus Transcript translated to protein What is the function of tRNA? - Carries aa to ribosome Anticodon pairs with codon on mRNA strand What is the function of rRNA? - part of ribosome structure most abundant RNA coordinated coupling of tRNA to mRNA...

***Download Test Bank Immediately After the Purchase. Just in case you have trouble downloading, kindly message me, and I will send it to you via Google Doc or email. Thank you*** NURS 611 Advanced Pathophysiology Exam Test Bank is an extensive resource designed to assist nursing students in their studies. It's particularly tailored for those attending Maryville University or similar institutions, focusing on the advanced pathophysiology course. The test bank contains a variety of exam-like qu...

What is a function of a prokaryotic cell membrane? a. Lipid synthesis b. Protein secretion c. Respiratory electron transport d. Osmotic barrier e. All of these are true correct answers E. All of these are true Which of the following cell components would not be found on a gram-positive, circular-shaped bacterium? a. Outer membrane b. Teichoic acids c. S layer d. Flagellum e. Murein correct answers A. Outer membrane Which structure can give more rigidity to the cell wall? a. Pili...

IB Biology - Topic 3 – Genetics Latest 2024 Graded A+ Define gene. A heritable factor that consists of a length of DNA (not an entire chromosome) and influences a specific characteristic Define allele. Various forms of a gene Define locus. The position a gene occupies on one type of chromosome Define genome. The whole genetic information of an organism How do alleles differ from one another? By a few differences in DNA base sequence What is the genome size (million base p...

What is a function of a prokaryotic cell membrane? a. Lipid synthesis b. Protein secretion c. Respiratory electron transport d. Osmotic barrier e. All of these are true correct answers E. All of these are true Which of the following cell components would not be found on a gram-positive, circular-shaped bacterium? a. Outer membrane b. Teichoic acids c. S layer d. Flagellum e. Murein correct answers A. Outer membrane Which structure can give more rigidity to the cell wall? a. Pili...

NURS 611 EXAM 1 PATHO ACTUAL EXAM AND TEST BANK COMPLETE 400 QUESTIONS AND CORRECT SOLUTIONS WITH RATIONALES | ALREADY GRADED A+ 2024/2025 (MARYVILLE UNIVERSITY) Chapter 1­ Cellular Biology 1. It is true that a eukaryotic cell: A Is smaller than a prokaryotic cell. B Contains structures called organelles. C Lacks a well­defined nucleus. D Does not contain histones. Eukaryotic cells contain organelles and histones, they have a well­defined nucleus, and are larger than prokaryotic ce...

produces a functional RNA, which usually encodes a protein structural gene regulates the expression of a structural gene. - Does not encode an RNA or protein - Includes promoters & binding sites for regulatory proteins regulatory sequence most have one circular chromosome bacteria and archaea are larger than those of bacteria, in a nucleus, and linear, which requires telomerases to finish replication of the last part of the lagging strand eukaryotic genomes More DNA = trade-off between cost ...