Virus bacteriophage Study guides, Revision notes & Summaries

BIOD 171 Portage Learning Final EXAM Questions and Answers 100%Correct/Exam 1-7 2023/2024 UpdatePortage Learning BIOD 171 Final EXAM Questions and Answers 100%Correct/Exam 1-7 2023/2024 Update True or False: A virus is considered a microorganism. False. Viruses are not living and as such are not considered microorganisms. Viruses can, however, be classified as microbes, a more general term that includes microorganisms and viruses. 1. What is the smallest biological unit of life? A cell. ...

Section I (Multiple-Choice Questions) Time: 80 minutes 100 questions Directions: Each of the following questions or statements is followed by five possible answers or sentence completions. Choose the one best answer or sentence completion. 1. In which of the following are the nuclear activities most opposite? A. prophase and metaphase B. prophase and anaphase C. prophase and telophase D. metaphase and anaphase E. metaphase and telophase 2. A severe storm forms a new river that...

Straighterline Microbiology Final Exam 2024 Questions With 100% Correct Answers The study of evolutionary relationships among organisms is called ______. - answerphylogeny The three cell types discussed, eukaryotes, archaea, and bacteria, all derived from ______. - answerLast Universal Common Ancestor Organisms called parasites are ______. - answeralways harmful to their host Which of the following does not indicate microbe involvement in energy and nutrient flow? - answerThermal hot spr...

Portage Microbiology Exam #6 Questions and Answers Already Passed True or False: Because the genome is contained within an enclosed space, (much like the nucleus of a cell) viruses are classified as eukaryotic False. Viruses are neither eukaryotic nor prokaryotic Describe the two basic components of a virus (short answer) A virus has 1. genomic material comprised of either DNA or RNA and 2. a capsid, a membrane-like protective structure that contains the genetic material, similar to the nucleu...

Portage Learning BIOD 171 Microbiology Lecture Exam Key 1-6 Exams 1. What are the two major types of nucleic acids and their roles? DNA- deoxyribonucleic acid RNA- Ribonucleic acid DNA- Cellular life has DNA and a role that DNA has is long-term storage of information, it holds the characteristics of living organisms. RNA- Is the carrier of information in form of amino acid sequence. It converts the information in the DNA and synthesizes proteins Tru...

BIOL 2200 - Exam II Practice Questions with Complete Solutions Which of the following statements correctly answers how the large amount of genetic variation observed in prokaryotes arises? A) The mutation rate in prokaryotes is much higher than in eukaryotes. B) They have extremely short generation times and large populations. C) They can exchange DNA with many types of prokaryotes by way of horizontal gene transfer. D) They have a relatively small genome. B and D The short gener...

StraighterLine BIO250 - Microbiology Final Exam Study Guide What is a Transforming Infection? - ANSWER Virus that alters cell DNA, leading to cancer What is a lysogenic infection? - ANSWER Phage DNA is incorporated into host genome and is passed on to subsequent generations What is a Lytic Bacteriophage Infection? - ANSWER Host cell gets so packed with viruses that is lyses (splits) open ...

Bacteriophage E79 is a virus that attaches to the lipopolysaccharide of a specific bacterium as the first step of infection. Which organism would be susceptible to this virus: a. An acid-fast Mycobacterium leprae b. A gram-negative Pseudomonas aeruginosa c. An archaeon with a lipid monolayer in the envelope d. A gram-positive Streptococcus pneumoniae e. (b) AND (c) CORRECT ANSWER b. A gram-negative Pseudomonas aeruginosa A chemoautotroph uses a. CO2 as the carbon source b. visible ...

Which of the following statements correctly answers how the large amount of genetic variation observed in prokaryotes arises? A) The mutation rate in prokaryotes is much higher than in eukaryotes. B) They have extremely short generation times and large populations. C) They can exchange DNA with many types of prokaryotes by way of horizontal gene transfer. D) They have a relatively small genome. - Answer-B and D The short generation times and large population sizes in most prokaryotic speci...

Bacteriophage CORRECT ANSWER A virus that infects bacteria Cancer CORRECT ANSWER any malignant growth or tumor caused by abnormal and uncontrolled cell division Generalize transduction CORRECT ANSWER Type of horizontal transfer that occur when a phage carries a random piece of bacterial DNA; the phage acquires that DNA when a packaging error occurs during the assembly of phage particles Latent infection CORRECT ANSWER viral infection in which the viral genome is present but not active, ...