Viral genome consists of - Study guides, Class notes & Summaries

Microbiology D311 - OA Prep 2025 Guaranteed Success What is the main difference between Gram-positive and Gram-negative bacteria? ️️ Gram-positive bacteria have a thick peptidoglycan layer in their cell wall that retains the crystal violet stain, while Gram-negative bacteria have a thin peptidoglycan layer and an outer membrane that does not retain the stain. Describe the process of microbial respiration. ️️ Microbial respiration is the process by which microorganisms convert...

bio 116 exam 1 and 2 questions and answers you identify two new organisms that share a specific morphological feature. genetic analysis reveals that each organism uses different protein structure. which of the following are true regarding these organisms 1. the shared feature is analogous 2. these organisms represent sister taxa 3. their common ancestor probably did not possess this feature 4. the shared feature is a homologous character - Ans:-1 and 3 identify which of the following de...

10 correct answers If a cell at metaphase of mitosis contains 20 sister chromatids, how many chromosomes will be present in a G1 cell? a) 5 b) 20 c) 10 K+ correct answers In a resting potential, an example of a cation that is more abundant as a solute in the cytosol of a neuron than it is in the interstitial fluid outside the neuron is ___________. a) Na+ b) Cl- c) K+ a plant cell in the process of cytokinesis correct answers Through a microscope, you can see a cell plate beginning t...

BIO 252 EXAM 1 STUDY GUIDE WITH COMPLETE SOLUTIONS Homologous chromosomes - Ans:-Chromosomes that pair durng meiosis and are identical with respect to their genetic loci and centromere placement. Chromosomes in diploid cells exist in pairs, one from the mother and one from the father. Diploid - Ans:-containing two complete sets of chromosomes, one from each parent. Haploid - Ans:-having a single set of unpaired chromosomes Mitosis - Ans:-cell division in which the nucleus divides into nuc...

OpenStax Microbiology Test Bank Chapter 6: Acellular Pathogens * = Correct answer Multiple Choice 1. Which of the following is not a property of a virus? A. It is an infectious cellular pathogen.* B. It is an obligate intracellular pathogen. C. Its genome consists of DNA or RNA. D. Its genome is surrounded by a protein capsid. 2. Which of the following is the scientist responsible for first discovering viruses (specifically, tobacco mosaic virus)? A. Dimitri Ivanovski* B. Edward Jen...

OpenStax Microbiology Test Bank Chapter 6: Acellular Pathogens * = Correct answer Multiple Choice 1. Which of the following is not a property of a virus? A. It is an infectious cellular pathogen.* B. It is an obligate intracellular pathogen. C. Its genome consists of DNA or RNA. D. Its genome is surrounded by a protein capsid. Difficulty: Easy ASM Standard: 10, 13 2. Which of the following is the scientist responsible for first discovering viruses (specifically, tobacco mosaic vi...

Biology Chapter 18 Practice Test 44 Questions with Verified Answers In the case of E. coli, the bacterium may need to synthesize tryptophan, or its host, a human, may supply all the tryptophan it needs. Why do both bacteria and humans need tryptophan? A) It is an important enzyme in the glycolysis pathway. B) It is one of the 20 amino acids used by all organisms to synthesize proteins. C) It is an important constituent of cell walls in both humans and bacteria. D) Tryptophan induces the ...

Drug Discovery • Unlike small molecule drugs (pharmaceuticals), large molecule drugs (biopharmaceuticals) are mainly protein-based o These protein-based drugs are similar to natural biological compounds found in human body or they're fragments that mimic active part of natural compounds Discovery of Pharmaceuticals commences w/ scanning hundreds of compounds, whether w/ actual materials (irrational approach) or virtual simulations (rational approach) • Pharmaceuticals are new che...

AP Bio Genetics, RNA, and DNA Practice Exam 110 Questions with Verified Answers In his transformation experiments, what did Griffith observe? a. Mutant mice were resistant to bacterial infections. b. Mixing a heat-killed pathogenic strain of bacteria with a living nonpathogenic strain can convert some of the living cells into the pathogenic form. c. Mixing a heat-killed nonpathogenic strain of bacteria with a living pathogenic strain makes the pathogenic strain nonpathogenic. d. Infecti...

A virus has been discovered. The virus has no envelope and consists of a helical capsid surrounding its dsDNA genome. During assembly, the pac site of the genome ensures that it is properly packaged by the capsomeres. Which of the following amino acids is/are expected to be on the capsomere domain that interacts with the pac site? A. lysine B. methionine C. glycine D. arginine E. A and D Answer: A and D Explanation: DNA has a negative charge, so positively charged amino acids, such as...