Plasmids - Study guides, Class notes & Summaries

112 Questions and Answers Already Passed How do cells generate energy in the absence of oxygen? Cells generate energy through anaerobic respiration or fermentation when oxygen is not available. What is the role of spindle fibers during mitosis? Spindle fibers help separate chromosomes during cell division, ensuring each daughter cell gets the correct number of chromosomes. Why is the smooth endoplasmic reticulum important in lipid synthesis? The smooth endoplasmic reticulum is r...

BIO 205 Arizona College of Nursing Spring 2022 Module 1 Graded A+ What key role does the microbiome play in the human body? The microbiome helps in digestion, supports immune function, and protects against harmful pathogens. How does inflammation serve as a defense mechanism? Inflammation helps isolate and destroy harmful agents, promoting tissue repair and healing. What are the distinguishing features of gram-positive and gram-negative bacteria? Gram-positive bacteria have thi...

MCB4304 Ch 4 Exam 1 Questions & Answers 2024/2025 Ch 4 Which of the following enzymes cannot catalyze the formation of a phosphodiester bond? a. Endonuclease b. RNA polymerase c. DNA polymerase d. Ligase e. None of the above - ANSWERSE Ch. 4 Select the component that gives a plasmid its host range. a. Tetracycline resistance b. Ampicillin resistance c. EcoRI site d. Origin of replication e. ligase - ANSWERSD Ch. 4 A molecular biologist is able to select recombinant c...

What are bacterial nucleic acids DNA (forms a nucleoid) and Plasmids How many base pairs in bacterial DNA several million Roughly how many base pairs in plasmids ~20,000 What are the subunits in prokaryotic ribosomes 50S and 30S = 70S sedimentation Which ribosomal subunit can help identify a specific microbe 30S subunit

MCB 100 FULL Exam 1 (UIUC) Questions and Answers Graded A+ Question: What is the primary difference between prokaryotic and eukaryotic cells? Answer: Prokaryotic cells lack a true nucleus and membrane-bound organelles, while eukaryotic cells have a defined nucleus and organelles surrounded by membranes. Question: What is the role of ribosomes in bacterial cells? Answer: Ribosomes are responsible for protein synthesis, translating mRNA into polypeptide chains that fold into functional pr...

Biodiversity - Answer-The variability among living organisms from all sources and the ecological complexes of which they are part; includes diversity within and among species and ecosystems -Prokaryotes are so important to the biosphere that if they were to disappear, the prospects of survival for many other species would be dim Why study biodiversity? - Answer--To understand evolution of life -To appreciate nature -To assess its economic value -To see the larger impact of humans on the e...

Microbiology for COMLEX Level 1 Latest Update 100% Pass -Sheep or goat wool -Widened mediastinum -Poly-D glutamate Bacillus anthracis *AIDS/HIV* pt with *meningitis* Immediately think *Cryptococcus neoformans* Cryptococcus neoformans is the *#1 cause of meningitis* in pts with *HIV/AIDS* *Confirmatory* test for HIV infection Western blot -Uses gel electrophoresis *Ether exposure* to viruses Ether *dissolves the lipid bilayer* that makes the outer viral *envelope* *Loss...

MIP 300 Exam 4Horizontal gene transfer - correct answer The sharing of genes between different bacterial strains and species through multiple different mechanisms Horizontal gene transfer is responsible for ____________ than even spontaneous mutations - correct answer More genetic diversity Recombination - correct answer Any genes from one cell passed to a recipient, DNA combined with recipient DNA forming a new hybrid DNA 3 mechanisms of prokaryotic horizontal gene transfer, 3 ways pro...

BIOD 101 PORTAGE LEARNING MODULE 6 EXAM WITH BEST SOLUTIONS What is the nucleoid region used for? - To store genetic information in prokaryotes True or false: If false, make it true. The nucleoid region is bound by a membrane and does not contain bacterial chromosomes and DNA? - False The nucleoid region is NOT bound by a membrane and DOES contain bacterial chromosomes and DNA. Bacterial chromosomes are in what shape? - Circle Define plasmids - Small, circular region of DNA. How ...

Medical Microbiology Question and answers already passed Medical Microbiology Describe the overall cell structure of prokaryotes - correct answer Prokaryotes (primitive nucleus) a. Most contain a single chromosome of double-stranded DNA in a circle called a nucleoid that is not surrounded by a membrane b. Plasmids (smaller, circular, extrachromosomal DNAs) may be present 1. Plasmids are not necessary for survival, but may provide a selective advantage, such as antibiotic resistance c....