Bacterial conjugation - Study guides, Class notes & Summaries

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...

MCB2010 MDC Study Guide# 1 Questions with 100% Verified Correct Answers 2024/2025 Which of the following statements is INCORRECT regarding prokaryotic cells? a. Their DNA is not enclosed within a membrane. b. They lack membrane-enclosed organelles. c. They typically have a circular chromosome. d. They reproduce by binary fission. e. They lack a plasma membrane. - Correct Answer They lack a plasma membrane. 2.Each of the following statements concerning the gram-positive cell wall is tru...

Which of the following statements is incorrect regarding prokaryotic cells Correct Answer-E they lack a plasma membrane Each of the following statements concerning the gram-positive cell wall is true EXCEPT Correct Answer-C it protects the cell in a hypertonic environment Which of the following statements best describes what happens when a bacterial cell is placed in a solution containing NaCl? Correct Answer-C water will move out of the cell A gram-positive bacterium suddenly acquires ...

BIO 235- Genetics Exam 3 Questions With 100% Correct Answers 2024/2025 What is Conjugation? Takes place when genetic material passes directly from one bacterium to another. What is Transformation? Takes place when a bacterium takes up DNA from the medium in which it is growing. What is Transduction? Takes place when bacterial viruses carry DNA from one bacterium to another. True or False: Not all bacterial species exhibit ALL THREE type of DNA transfer. TRUE What are the three types of...

Microbiology FINAL Review (Jersey College) Questions and Answers | Latest Update | 2024/2025 | 100% Verified What is the primary function of the bacterial cell wall? The bacterial cell wall provides structural support and protection to the cell, maintaining its shape and preventing osmotic lysis. Describe the role of plasmids in bacterial cells. Plasmids are small, circular DNA molecules that replicate independently of the chromosomal DNA, often carrying genes that confer advanta...

MCB 3020C Module 2 Exam Review Questions and Answers 2024. *Anything denoted in red are extra important takeaways 1. What is the function of the Z ring in binary fission? A. It forms a contractile ring at the septum => Made up of FtsZ (tubulin homologues) molecules important for bacterial septation B. It controls the replication of DNA => Replisome contains DNA replication machinery C. It separates the newly synthesized DNA molecules => ParA polymerizes/depolymerizes to attach...

BIO 235- Genetics Exam 3 Questions With 100% Correct Answers 2024/2025 What is Conjugation? Takes place when genetic material passes directly from one bacterium to another. What is Transformation? Takes place when a bacterium takes up DNA from the medium in which it is growing. What is Transduction? Takes place when bacterial viruses carry DNA from one bacterium to another. True or False: Not all bacterial species exhibit ALL THREE type of DNA transfer. TRUE What are the three types of...

BIOL 2200 Exam 2 Latest Update with Complete Solutions Biodiversity 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? -To understand evolution of life -To appreciate nature -To assess its economic valu...

Bacteria shapes - Cocci, bacilli, vibrios (comma shaped), spirilla (spiral), pleiomorphic (various shapes) adherence molecules to stick to surfaces - - mediated by pili, fibers of pilin proteins possess other proteins on their tips for sticking - a sex pilus is used for conjugation - some microbes use an extension of the cell envelope tipped by a "holdfast" of paysaccharides 3 parts of flagella - - filament - hook protein - basal body active transport - - all microorganisms active tr...

BIO 202 Exam 1 Questions With 100% Correct Answers Updated 2024/2025 (Graded A+) When was earth formed? - correct answer 4.55 billion years ago When did life on earth first appear? - correct answer 3.5 billion years ago What are the evolutionary mechanisms? - correct answer *Nonrandom mating *Migration *Genetic drift *Natural selection When does allopatric speciation occur? - correct answer when members of the same species become geographically separated When does sympatric speciation oc...