Mic 205 Exam Ii Daydiff Questions With Verified Answers Latest Update 2026

MIC 205 EXAM II DAYDIFF QUESTIONS WITH VERIFIED ANSWERS LATEST UPDATE 2026 3 types of Horizontal gene Transfer - Answers transformation transduction conjugation 3 Types of RNA transcripts - Answers Messenger RNA Ribosomal RNA Transfer RNA 5 Cyclic nitrogenous Bases - Answers Adenine Guanin Cytosine Thymine Uracil 60-80% of all Bacterial infections are caused by-- - Answers bacteria in the biofilm form Acceptor stem - Answers portion of tRNA that is linked to an amino acid by aminoacyl-tRNA synthetase enzyme Acidophiles - Answers many fungi some bacteria grow best in acidic habitats 6.5 Aerobes - Answers Need oxygen to grow Aerobes O2 Classification - Answers utilize O2 as final electron acceptor during aerobic respiration can detoxify toxic forms of oxygen Aerotolerant anaerobes - Answers Can grow with or without oxygen Aerotolerant anaerobes O2 Classification - Answers do not use oxygen, fermentation or anaerobic respiration possess some enzymes capable to detoxify toxic forms of O2 Alcohols - Answers denature proteins and disrupt cell membranes by removing water from cells; hand sanitizer Aldehydes - Answers cross-link with amino, hydroxyl to denature proteins and inactivate nucleic acids; embalming formaldehyde Alkalinophiles - Answers live in basic soils and water up to pH 11.5 Anaerobes - Answers No oxygen Anaerobes O2 Classification - Answers fermentation or utilize final electron acceptors during anaerobic metabolism no ability to detoxify toxic forms of oxygen Anticodon - Answers Nucleotide triplet complementary to the mRNA codon for a given tRNA's amino acid Antimicrobial agent actions - Answers damage cell walls damage cell membrane Autotrophs - Answers Self-feeders; CO2 via calvin Benson cycle Bacteria use --- to relieve torsional strain on circular chromosomes. - Answers topoisomerases Barophiles - Answers Organisms that live under extreme pressure Biofilms are -geneours - Answers Heterogeneous Blood specimen collection method - Answers needle aspiration from vein; anticoagulants included Cells that want to stop making a protein typically shut down --- of the corresponding gene - Answers Transcription Cerebrospinal fluid collection method - Answers need aspiration from subarachnoid space of spinal column Characteristics of Biofilms - Answers Community attached to surface Complex social structure 1000x resistant to antibiotics Molecular filter Low metabolism of cells within the biofilm Chemical Mutagens - Answers nucleotide analogs nucleotide-altering chemicals frameshift mutagens Chemotrophs - Answers acquires energy from organic/inorganic molecules Chromosomes - Answers Main portion of DNA and contains house keeping genes Chromosomes are associated with? - Answers Proteins and RNA needed for replication and transcription Clinical Specimens - Answers human materials examined or tested for presence of bacteria and other microbes Codons - Answers cluster of 3 nucleotide units in an mRNA molecule that codes for a specific amino acid Common Biofilms - Answers Plaque Slime on river stones film on inside of old vase of flowers legume root nodules termintes sewage treatment bioreactors water pipes dental units contact lens cases Complex Biofilm - Answers community of one or more species of bacteria Conjugation - Answers transfer of DNA between bacterial cells that are in physical contact with each other via sex pili Differential Media Culture examples - Answers Blood agar plate reveals digestion of RBCs by bacteria Direct Repair - Answers enzymatic removal of damage inluding thymine dimers and alkylated bases Discrete Colony - Answers Aggregation of cells visible on surface of solid media Diseased tissue collection method - Answers surgical removal - biopsy Dispersed Cells - Answers Single cells suspended in liquid media DNA - Answers the genetic material of all organisms and of many viruses DNA Polymerase III - DNA Replication - Answers binds to primer and begins adding nucleotides to its 3' end DNA Polymerase III extends the new DNA strand by-- - Answers Reading the template strand and adding complementary nucleotides DNA polymerase III synthesizes-- - Answers DNA replicates DNA Polymerase inserts -- nucleotides - Answers Thymine DNA Replication - Answers Anabolic polymerization process that requires nucleotide monomers and energy Begins with double-stranded parental DNA helix DNA Replication is --- - Answers Semiconservative Elongation - Answers RNA polymerase extends the newly formed transcript using triphosphate ribonucleotides (5'-3') Occurs in complementary nature to the DNA strand Elongation - Translation - Answers ribosome recruits amino acid-bound tRNAs according to sequence of mRNA template ribosome will move 3 nucleotides