Over the past several decades, natural selection has caused populations of Staphylococcus aureus (an infectious wound bacterium) to evolve resistance to most antibiotics. If antibiotic use were stopped, what would you predict would happen to these S. aureus populations? The frequency of resistant forms will continue to increase in the population They will likely become extinct without the presence of the antibiotic They will likely stop mutating and developing new resistance mechanisms The proportion of non-resistant forms in the population is likely to increase The resistance gene will disappear from the population rapidly

Q: Which of the following are associated with the origin and spread of antibiotic resistance?

A: Explanation are given below

Q: Why Antibiotic resistance will be the leading cause of death by 2050? Use your own words to explain

A: Antibiotics are a class of drugs that prevent or kill the growth of bacteria. Their mode of action…

Q: The concept of eco immunology states that biotic and abiotic features influence the evolution and…

A: The human gut harbors a complex ecosystem of microorganisms, collectively known as the gut…

Q: In a single point mutation, when the RNA changes but not the amino acid, it is called Why do…

A: The mutation is the abrupt change in the DNA nucleotides which usually change the gene expression.…

Q: factors influenced the survival of humans during the bubonic plague

A: Some microorganisms behave as pathogens and cause disease which can be mild to severe in terms of…

Q: What type of evolutionary mechanisms occurs in Antibiotic Resistance and how this affect the…

A: Introduction:- The ability of bacteria to tolerate the effects of antibiotics is known as antibiotic…

Q: Which of the following is an indication of a genetic disease? It is shared among identical twins…

A: Genetic diseases are disorders caused in whole part of the DNA sequence that changed from the normal…

Q: Do you think a variation in the human genome that confers resistance to coronaviruses (SARS-COV-2)…

A: Genetic resistance refers to an inherited trait in an organism's genome that provides protection or…

Q: Before population replicates After population replicates 60 60 50 50 40 40 30 30 I# cells O# cells…

A: INTRODUCTION: Here the bacterial growth occurred in least resistance as well as highest resistance…

Q: 62-year-old male, peasant, former smoker, diabetic on insulin treatment and two-year hypertension,…

A: A 62-year-old male is a smoker with certain symptoms like barrel chest and excess cough. Barrel…

Q: Why does transferring only some of the culture make it easier to see the effects of competition?

A: Transferring only some of the culture make it easier to see the effects of competition

Q: Briefly describe the overall message of figure 1C

A: Figure 1C presents a detailed depiction of the gene network associated with the gastrointestinal…

Q: Parasitism is one of the most widespread life strategies to evolve. Which of the following supports…

A: A parasite is an organism that lives on or in a host organism and gets its food from or at the…

Q: "On the rapidity of antibiotic resistance evolution facilitated by a concentration gradient"   The…

A: A biological principle is a fundamental concept or idea that helps to explain or understand…

Q: What is the infectivity of the new influenza strain? Infectivity: number of people infected divided…

A: Hi, Thanks For Your Question.  Answer : Correct Option Is A (63%)

Q: A bacteria culture starts with 140 bacteria and grows at a rate proportional to its size. After 5…

A: Given that the starting population of bacteria is 140 and it grows at a rate proportional to its…

Q: Antibiotic resistance will be the leading cause of death by 2050. Do you agree? Use your own words…

A: Antibiotic resistance occurs if the germs no longer respond to the antibiotics that usually kill…

Q: Bacteria is being cultured in an agar plate. It was observed that the growth of bacteria is…

A: Introduction: The bacterial growth is proportional to the population of bacteria.

Q: If the Rt = 1.40 then 100 people with the virus would infect another _________ people.     40…

A: Effective reproductive rate is denoted as Rt and it defines whether the population is growing or…

Q: Describe mechanisms (random mutation, natural selection, reductive evolution) that contribute to the…

A: During evolution, the inherited traits are changed as they pass on from generation-to-generation.…

Q: Application of 16S rRNA sequencing has allowed: Reconstruction of evolutionary tree of cellular life…

A: Ribosomes are membrane bound organelles present in both eukaryotic and prokaryotic organisms. They…

Q: Which of the following contributes the least to the rapid spread of antibiotic resistance among…

A: Antibiotic resistance is a phenomenon by which microorganisms like bacteria gain resistance to a…

Q: You are studying a population of wild coyotes and notice that every three years there is an epidemic…

A: Epidemic refers to rapid widespread transmission of a disease to a large population or individuals…

Q: The antelopes from Africa were delivered to the Kiev's zoo. The protozoans Trypanosoma gambiense…

A: Trypanosoma gambiense causes an insect borne disease 'Trypanosomiasis' in both humans and animals.…

Q: A disease can spread by sneezing or via diarrhea that contaminates drinking water. Before widespread…

A: We are surrounded by various pathogens such as bacteria, viruses, fungus etc. Every day we get…

Q: In the fall of 2019 the CDC announced that there had been a mutation in one of the influenza strains…

A: The genome of the viruses are very susceptible of mutation that help them adaptation in the new and…

Q: Number of live cells (log) A B C D Time Which of the following statements is CORRECT regarding…

A: Cell growth and division are very crucial for survival. Different types of methods are used by…

Q: The method of applying the molecular clock to determine the timing of the most recent common…

A: Introduction Our immune system plays key role in defence against harmful foreign particles be it…

Q: 15. Below is a plot of death rates by vaccination status in the US (from the web site, Our World in…

A: Introduction A Coronavirus Is A Type Of Virus That Causes Infections In The Nose, Sinuses, And Upper…

Q: When SARS-CoV-2 replicates in cells, mutations can occur in the virus’s genome. When mutations have…

A: Mutation  The replacement of one nucleotide base with other nucleotide base is known as mutation.

Q: A recent outbreak of ranavirus in salmon has you concerned.  During your fieldwork you’ve discovered…

A: Hardy weinsberg principle states the changes in the frequencies of the individuals from one…

Q: A new viral disease shows up in human populations, and it appears that the survival rates of those…

A: Virals diseases are the common pathogens which cause illness to human body. They are easily spread…

Q: It’s late summer and a new influenza virus strain has appeared in chickens across the country. It’s…

A: I would analyze the genetic sequence of the new strain and compare it to the key mutations…

Q: Using the figure above of Griffith's experiment, the hypothesis rewritten to follow proper…

A: Griffith’s experiment involved the use of two strains of pneumococcus (Streptococcus pneumoniae), a…

Q: How can genome data be used to determine whether different human populations that have a similar…

A: A quantitative trait is a phenotype that can be measured that is influenced by the interactions…

Q: Which combination of factors would most likely result in the spread of an infection through the…

A: The question can be explained based on the following fact. Beta ratio, i.e. infection rate should be…

Q: Consider the following graph depicting the population growth of bacteria in an "ideal" laboratory…

A: Introduction :  Bacteria are prokaryotic unicellular organisms. They are found in different habitats…

Q: What is the relationship between the sickle cell mutation and the Plasmodium parasite? Would having…

A: Sickle cell sickness (SCD) is a gathering of blood issues ordinarily acquired from an individual's…

Q: Development of emerging infectious disease can be a result of which of the following? (Select all…

A: Emerging infectious diseases (EID) are usually the diseases that are caused due to several…

Q: Which of the following does not apply to superbugs? O It is estimated that 70% of antibiotics used…

A: The objective of the question is to identify which statement does not apply to superbugs. Superbugs…

Q: "On the rapidity of antibiotic resistance evolution facilitated by a concentration gradient"   The…

A: Antibiotic resistance refers to the ability of bacteria or other microorganisms to resist the…