Q: Please list the social impact caused by Coronavirus disease (COVID-19)
A: Coronavirus diseaseIt is commonly known as COVID-19. It refers to the infectious illness caused by…
Q: An edible vaccine has been created against Select one: O a. HIV, not approved O b. HIV, approved O…
A: The idea of an edible vaccination has recently gained traction thanks to biotechnologists. Subunit…
Q: Your heart is a single organ, but it acts as a double pump in the human body explain this important…
A: The human circulatory system consists of a muscular chambered heart, a network of closed branching…
Q: ASAP PLEASE In Talons, the feral style (S) is dominant over the gladiator style (s), and green eyes…
A: Genetics is defined as the study of heredity that is how characters are transferred from parents to…
Q: Imagine that you work at the medical examiner’s office for a major metropolitan city. As Chief…
A: Disease is an an abnormal condition that disrupts or adversely affect normal functioning of the…
Q: A study was conducted to determine the importance of Nucleoid Associated Proteins (NAPs) by deleting…
A: 1- Nucleoid-associated protein (NAPs): These are small DNA binding proteins which can alter the DNA…
Q: Study the sequences below. Construct a molecular cladogram from the different amino acid sequences…
A: The phylogenetic tree and the molecular cladogram are both important tools in molecular biology and…
Q: The figure below depicts cells from the same organism. Cell B is demonstrating which of the…
A: By multiplying their cell population, organisms may grow and develop due to cell division.…
Q: 10. What would be the result if a cell failed to express a functional signal peptidase enzyme? a.…
A: Signal peptidases are proteins which cleave the signal peptides from their N-termini to transform…
Q: Fill in the gaps in the paragraphs below: Blood pressure can be regulated by the nervous system, in…
A: The two parts of the autonomic nervous system are- sympathetic and parasympathetic. The sympathetic…
Q: Pollination is a key aspect of plant reproduction. Compare and contrast wind pollination and animal…
A: The transfer of pollen grain from male anther of a flower to a female stigma is known as…
Q: In certain plants, red flowers are dominant to white flowers. If a heterozygous plant is crossed…
A:
Q: Which is NOT true of commercial dairy farming in developed countries. Most commercial dairies…
A: Commercial dairy farming in developed countries is a complex and highly efficient industry that…
Q: When would you use a compound light microscope instead of a dissecting microscope?
A: A microscope is an instrument that is used to obtain an enlarged image of a tiny objects, showing…
Q: Question 5 Use the following diagram to answer questions 4 and 5: Chose the appropriate letter. 14N…
A: Production of new DNA from the old DNA is known as DNA replication. In case of eukaryotic cells DNA…
Q: Part IV: 1. What affect would cyanide have on the electron transport chain and the production of…
A: The electron transport chain (ETC) is an essential component of cellular respiration, the process by…
Q: 1. Paramecium caudatum is a unicellular organism that can phagocytose and digest a bacterium using…
A: Within the unicellular living being Paramecium caudatum, hydrolytic enzymes are utilized during the…
Q: 4. Which term describes the cell membrane potential of a neuron at rest? a. polarized b.…
A: The neuron is an excitable structure, its function is to receive and transmit various stimuli in the…
Q: Using a laser beam, you isolated several R bands from human chromosomes. Answer the following…
A: R bands, also called reverse bands, are distinct chromosomal regions that glow darkly under a…
Q: Part A Chemical reactions that release energy are called exergonic. energetic. endergonic.…
A: Living organisms shows metabolic properties. Different metabolic reactions occur within the living…
Q: why is unsaturated fatty acid used to maintain membrane fluidity and flexibility?
A: For cells to function properly, cell membrane integrity and functionality are essential. Maintaining…
Q: A naked (non-enveloped) virus ONLY has a/an O nucleocapsid O envelope O antigenic surface O caporite…
A: The viruses are classified as both living as well as non-living. When they are present outside of…
Q: 3. Botulism often occurs in adults as intoxication from consuming food containing preformed toxin.…
A: BotulismBotulism is caused by ingestion of preformed toxin of Clostridium botulinum. It is…
Q: Given the following codons and their corresponding amino acids: UUU- Phenylalanine GAA- Glutamate…
A: This question involves the understanding of genetic information and the processes involved in…
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: nvestigate the changes in taxonomy since Linnaeus. Note major changes, such as the recognition that…
A: 1)The field of taxonomy, which involves the classification and categorization of organisms, has…
Q: Cross a true-breeding plant that produces yellow seeds with a plant that produces green seeds. a)…
A: The gene is the sequence of nucleotides present in the DNA. Each gene codes for a specific trait.…
Q: Match the term with the correct definition energetic hypothesis food chain bottom-up control food…
A: Ecology is the science that deals with the study of organisms, their interaction with other…
Q: A population of bats in a local zoo demonstrates geometric growth. The initial population size is 43…
A: Geometric growth is way of increasing population size at foxed intervals and constant rate.
Q: growth curve
A: Note: As per the guidelines of bartleby we have to answer the first 3 questions as they are…
Q: Stemonitis slime mold
A: Slime molds are a group of fungi-like organisms that have cellulose in their cell wall but do not…
Q: You and your lab partner performed a complementation test for five recessive histidine auxotrophs.…
A: Histidine auxotrophs are strains or organisms that have a mutation in a gene involved in the…
Q: The coefficient of relatedness for the population of Great Brittan is 0.015. What is the risk of…
A: The degree of consanguinity (or biological relationship) between two people is measured by the…
Q: Please read question carefully: Name four separate components of a Microscope CPU
A: Higher magnification levels are possible with a high power or compound microscope than with a stereo…
Q: how does the peripheral nervous system regulate homeostasis
A: Nervous System is the prime controller of homeostasis and provide quick responses in maintaining…
Q: Diffusion experiments of a small molecule drug in tissue samples are performed. The drug has a…
A: The ability of a dug to diffuse through the cell membrane is called diffusivity. Lipophilic drugs…
Q: An organ system includes a minimum of how many organs with similar primary functions?
A: An organ system is a group of organs that work together to perform specific functions within an…
Q: Identify the five ways that poor agriculture practices degrade our soils. Give typing answer with…
A: Agriculture sustains the global population by providing food, fiber, and other resources. When…
Q: For questions 4 - 7; fill in the blank to complete each sentence or statement. in order to begin…
A: Green plants make their own food by photosynthesis. Photo refers to 'sunlight'. Synthesis refers 'to…
Q: COMPLETE THE CHART USING (+) or (-) Organism 5% Sheep Blood Agar Incubated 37°C for 48 Hrs Alpha…
A: When cultivated on a blood agar plate, red blood cells undergo hemolysis or breakdown or…
Q: A genetic autoimmune disease is caused by a single recessive allele a that is located on the…
A: In this genetic scenario, a rare autoimmune disease is caused by a single recessive allele, denoted…
Q: Vaccination against influenza is considered the most effective way to limit the spread of influenza…
A: Pandemic occurring over time significantly establish long term effects on wholesome population.…
Q: 2. Consider the following reaction. What is the consequence of the increase of cytosolic CAMP…
A: During "fight or flight" response, heart rate and blood pressure increases. This means breathing…
Q: Determine whether the expression of wild type lacZ and lacy would be “inducible,” “uninducible” or…
A: A genotype refers to the genetic makeup or combination of alleles present in an individual or…
Q: Which of the following is the most distantly related to the others? A) Platyhelminthes (flatworms)…
A: A. Platyhelminthes-1. 20,000 species -most parasitic; only 20 species are free-living. • I…
Q: Write in a unique derived trait for: A1: strepsirrhines (lemur/loris/potto/bushbaby) A2: tarsiers…
A: A complicated and intriguing subject that spans millions of years is the evolution of monkeys.…
Q: Are there specific E. coli strains used to make competent cells? Explain the characteristics of…
A: Competent cells are the bacterial cells which take up foreign DNA by the process of transformation.…
Q: genetic disease: 25% 100% 50% XAY 0% ХА Y ХА ХАХА XAY ХАХА What is the probability that these two…
A: Punnett square is a chart which helps in determining the percentage of different genotypes in…
Q: What about the gradients in 3 and 4 in the lower panel? When you say "transcription factor B (1)"…
A: Panel 1: It represents gradient of morphogen A and how after a particular threshold, morphogen A…
Q: Determine the population growth rates based on a population size of 50, 100, 200, 350, 480, 500,…
A: Logistic growth is a concept in population studies that describes a type of population that is…
Ten grams of hamburger were added to 90 mL of sterile buffer. This was mixed well in a blender. One-tenth of a
mL of this slurry was added to 9.9 mL of sterile buffer. After thorough mixing, this suspension was further diluted
by successive 1/100 and 1/10 dilutions. One-tenth of a mL of this final solution was plated onto Plate Count agar.
After incubation 145 colonies were present. How many colony-forming units were present in the total 10 gram
sample of hamburger?
Step by step
Solved in 3 steps
- In this experiment, a culture was serially diluted to the concentrations below. Each plate was plated with 0.25mL of the dilution. Using the most diluted plate, what is the correct concentration of the original culture? A) 2.0 X 10^-3 cells/mL B) 2.0 X 10^5 cells/mL C) 4.0 X 10^5 cells/mL D) 5.0 X 10^4 cells/mLFive ml of bacterial culture is added to 45 ml of sterile diluent. From this suspension, the following serial dilutions were made, two 1:100 and one 1:10 dilutions, and 0.1 ml is plated onto Plate Count Agar from the last dilution. After incubation, 186 colonies were counted on the plate. 1. What is the dilution factor, or how much of the original sample was diluted?one lm of milk was added to 9 ml of sterile saline. 0.1ml of the diluted sample was put into a petri dish with melted agar. How many cfu/ml are in the milk if 200 colonies were counted?
- A laboratory technician performed a series of 10 fold serial dilutions shown below. he plated 0.1 mL from each dilution tube onto NA and got the follow numbers per plate dilution 1:10 1:10 1:100 1:1000 1:10000 1:100000 colony count >1000 >1000 808 303 38 3 calculate the concentration of bacteria in the undiluted stock (in CFU/mL)a pure bacterial culture was diluted by adding a 0.2 mL aliquot to 0.9mL water. Then 0.1 mL of this dilution was plated out, yielding 82 colonies. Calculate the CFU/mL in the original culture.a sample was diluted by placing a 0.1 mL of dilutent and 1 mL of this dilution was pour-plated. After incubation, 150 colonies appeared. what is the CFU/mL in the original culutre?
- Five grams of soil were added to 45 ml of sterile water and shaken vigorously. After that, 0.1 ml of this was added to 9.9 ml of sterile water. This was further diluted by 4 successive 1/10 dilutions. The last dilution was used to prepare a spread plate (0.1 ml) . After incubation, 58 colonies were present on this plate. What is the CFU/g of the soil sample? •Assume: 1 g = 1 mLThree grams of soil from the ground were added to 27 mL of sterile water and shaken vigorously. After the soil particles settled, 0.1 mL of this was added to 9.9 mL of sterile water. This was further diluted by 4 successive 1/10 dilutions. One mL from the last dilution was used to prepare a pour plate. After incubation, 289 colonies were present on this plate. What was the number of colony-forming units/gram of the soil?In a plate count, 1 mL of culture is spread on a plate and incubated for 24 hours. 250 colonies are counted. Answer the question below. there were _____cells in the 1 mL of culture that was spread on the plate. If the culture was diluted 1:100 prior to plating, how many cells were there per mL in the original culture? _________
- A bacterial culture has a concentration of 3.2 x 108 cells /mL. You dilute this culture as follows: 1/50, then 10-3 and finally 1/20. If you then plate 0.2 mL of the final dilution, how many CFU would you expect following incubation?Five grams of soil were added to 45 ml of sterile water and shaken vigorously. After that, 0.1 ml of this was added to 9.9 ml of sterile water. This was further diluted by 4 successive 1/10 dilutions. The last dilution was used to prepare a spread plate. After incubation, 58 colonies were present on this plate. What is the CFU/g of the soil sample? •Assume: 1 g = 1 mL •Spread plate uses 0.1 mLYou perform a set of serial dilutions using 99-mL water blanks (successive 1-mL dilutions into blanks A, B, and C, respectively). Following spread plating and incubation of a 0.1 mL subsample from Blank C, you count 66 colonies on the plate. How many colony-forming units are in the original broth culture?