Question: Microbiology In Estimating Bacterial Count, which of the bacterial counts (direct count or viable count) would have a greater value? Provide an explanation.
Q: The human immune system produces antibodies in response to the presence of antigens. Outline the…
A: Acquired immunity is immunity that develops with exposure to various antigens. Your immune system…
Q: speciation in the Galapagos finches occurred through geographic isolation
A:
Q: Interconnected cavities within the brain are called _____; they contain _____. a- ventricles;…
A: Brain and brain cavities :-
Q: If a population has allele frequencies for A1 and A2 at 0.9 and 0.1 respectively, what is the…
A: Answer) The probability that A2 is lost would be 81%.
Q: The septum completely separates the two halves of the mammalian heart. Because of this The blood…
A: The heart is a fist-sized organ that pumps the blood throughout the human body. It is the primary…
Q: Explain how water moves up the xylem vessels to the leaves in a continuous column.
A: In vascular bundles, non-woody plants, and non-woody sections of woody plants, xylem can be found.…
Q: Heterozygous for height * Your answer Homozygous dominant for seed shape * Your answer Heterozygous…
A: Please follow step 2 for detailed explanation.
Q: Compare and contrast the structure and function of two important organelles in either an animal or…
A: An organelle is a subcellular component which, like an organ in the human body, has one or more…
Q: I. Give the chromosome number and chromosome configuration if the following mutations occurred in…
A: As per the guidelines, we are supposed to answer only three sub-parts. Kindly repost the question…
Q: 1. During the Neolithic Revolution, all humans switched from a hunter-gatherer lifestyle to an…
A: Introduction The Stone Age was a prehistoric cultural phase or phase of human development,…
Q: 54. Which of the following plant hormones causes delayed leaf senescence? а. ethylene b. auxin C.…
A: correct answer;- cytokinin Explain;-Cytokinins are plant-explicit synthetic couriers (chemicals)…
Q: Answer the following questions in paragraph form of at least five sentences. 1. Differentiate…
A: The mechanism which results in sealing of a leaking or severe blood vessel to stop bleeding is…
Q: Panama disease in Banana (Draw the symptom) Other known common name: Scientific Name of the…
A: Plant pathogens are those organisms that infect plants and cause disease. Although some plant…
Q: Taphonomy tells us ab0ut preservati0n biases in the fossil rec0rd. What kind of biases affect 0ur…
A: Taphonomy refers to the branch of paleontology (study of life history based on fossils) which is…
Q: What are considered as "Organelles for structural support, movement, and communication between…
A: Structural and functional unit of all the life is the Cell. And this cell is made up of the many…
Q: How do prokaryotic & eukaryotic cells differ in size? How are their chromosomes shaped? Where in the…
A: INTRODUCTION Eukaryotes : cells with clearly defined nucleus. Prokaryotes : lack nucleus and other…
Q: How many generations of natural selection will it take for the frequency ofa recessive lethal allele…
A: Natural selection is one of the evolutionary factors that deviate the population from the genetic…
Q: Draw the insect and the host Pest Coffee berry borer Scientific Name:____________________________…
A: Berry Borer or Coffee Borer Beetle is an insect found in the coffee seeds and damaging it…
Q: lacl+ lacZ+ lacY+ lacoc lacZ+ lacY+ lacls lacZ+ lacY- None of these options would restore wildtype
A: Here i discuss about the constructs of genotypes that can restore the wild type phenotype of lacY.
Q: 54. Which of the following plant hormones causes delayed leaf senescence? а. ethylene b. auxin С.…
A: c)cytokinin
Q: Define the term ‘atherosclerosis’ and list the potential risk factors for this condition
A: Introduction:- The accumulation of plaque in the arteries that provide oxygen-rich blood to your…
Q: Patients with damage to the amygdala of their brains do not _____. a- feel pain b- recall images…
A: The swollen part of central nervous system located in brainbox having cavities filled with…
Q: Discuss, How wil you characterize the Bing eating ?
A: Introduction Disorder:- It is a disturbance of normal functioning of the mind or body, It may be…
Q: For each genotype below, indicate whether it is heterozygous or homozygous. Write PAUL if its…
A: Heterozygous condition is the combination of two alleles, one is dominant and the other is…
Q: can you cite the references po. References are cited as numbers in parenthesis within the test and…
A: Sorry student! But as per the guidelines given to the expert by bartleby, it is not allowed to cite…
Q: 7. Fill in the following table. Acid TRNA MRNAI DNA DNA amino sense anti-sense UGA UGA, Histidine…
A: Transcription: It is the process through which the enzyme RNA Polymerase transfers information from…
Q: AA * Your answer Bb * Your answer Cc * Your answer
A: Homozygous condition refers to true breeds which are made up of two similar alleles. For example -…
Q: Berry: Tomato or Grape Examine fresh tomato fruits or other berry, noting the stalk or pedicel and…
A: Introduction A fruit is a flowering plant's fleshy or dry ripened ovary that contains the seed or…
Q: Provide the following information 1. One intrinsic factor that causes mutation. 2. Type…
A: Intrinsic factors is a substance by the stomach that enables the body to absorb vitamin B12 (a…
Q: Drying as a method of food preservation examples of food the can be preserved using such method…
A: Introduction Food preservation is a type of strategy by which meals are kept safe from spoilage…
Q: In Tetrahymena, the removal of the single intron in the rRNA precursor does not involve a protein. O…
A: Central dogma includes three steps of transfer of genetic information which are replication,…
Q: 7. Look at 6a and 6b. Compare the RNA sequences and the polypeptide sequences they code for. What…
A: A base pair is two nucleotides that together constitute a DNA ladder." A DNA nucleotide is composed…
Q: Evaluate the importance of sustainable use of plants to Canadian society and/or other cultures on…
A: Plants are eukaryotic multicellular creatures.Shoots and roots make up the plant's body. The aerial…
Q: Create a food web for one of the following ecosystems and identify: • Producers (first trophic…
A: A food web is a graphical depiction of what eats what in an ecological community and the natural…
Q: 3.In guinea pigs, short hair is dominant over long hair. If a short haired SS guinea pig is crossed…
A: A monohybrid cross is a Mendelian cross that is performed when studying a single trait to understand…
Q: The major function of the alveoli is to Select one: O a. moisten the air O b. filter dust and…
A: Alveoli are tiny air sacs present in the lungs which appears as a bunch of grapes. These are also…
Q: Cell-mediated immune response includes the following except to ______. A. activate B lymphocyte B.…
A: Cell mediated immune response is carried out by T lymohocytes of our immune system. It is an immune…
Q: What are considered as "Organelles for structural support, movement, and communication between…
A: Organelle is a biological structure that performs a distinctive function inside a cell. Organelle…
Q: 1. During the Neolithic Revolution, all humans switched from a hunter-gatherer lifestyle to an…
A: Introduction Agriculture is the art and science of cultivating the soil, growing crops, and raising…
Q: Fill in the blanks to make this sentence correct: When the solute concentration in the blood is (…
A: Antidiuretic hormone (ADH) helps in the regulation of body water. It regulates how much water your…
Q: Mendel's Traits and Symbols for Pea Plants Traits Seed Shape Seed Color Dominant Allele Symbol…
A: Homozygous : A trait is said to be homozygous when it is made of two same alleles. Heterozygous : A…
Q: Name five (5) Philippine Plant Extracts that are used or are being studied as alternatives for drug…
A: Natural products is one of the key sources of drug and cosmetic in pharmaceutical and FMCG/cosmetic…
Q: The frequency of S is ________________ and the frequency is s is__________________? Under…
A: Hardy Weinberg equilibrium Hardy Weinberg's principle states that a population will remain in…
Q: On the basis of the information provided, is the inheritance of haemophilia: autosomal or…
A: Hemophilia is a form of clotting deficiency due to lack of clotting factor 8 and 9. Most affected…
Q: To explain: The roles of photosynthesis, cellular respiration, combustion, and erosion in the carbon…
A: The stuff in the atmosphere flows in numerous cycles from one section of an ecosystem to another,…
Q: Fig 4.1 shows the number of deaths from TB and the number of new cases of TB from 1925 to 2010 in…
A: Tuberculosis is caused by a type of bacterium called the Mycobacterium tuberculosis. It is spread…
Q: Is vegetative propagation a form of asexual reproduction? Give your reasoning.
A: Asexual plant reproduction which occurs in the plant's leaves, origins, and stem is known as…
Q: How does the petiole aid in the photosynthetic function of the leaves? Which leaf shape…
A: Introduction In most dicots, the leaf of a plant is linked to the stem by a thin stalk called the…
Q: Question What does the hemoglobin graph regarding YO2 represent?
A: Hemoglobin is tetramer of myoglobin that acts as a sophisticated system for transporting oxygen…
Q: the addition of the phosphate group causes a conformational change, thus regulating the protein's…
A:
provide answer with explanation
dont copy
give asap
Step by step
Solved in 2 steps
- The number of bacterial cells in a culture broth is to be determined by a culture technique. Serial dilutions were performed and a 0.1 mL aliquot from each dilution was spread onto Plate Count Agar (PCA). The number of bacterial colony forming units (CFU) after overnight incubation are shown as listed in the table below. What is the number of colony forming units per mL of the culture broth? Choose only the most appropriate plate for your calculation. Give your answer as the number only (do not add text for the units). You may use scientific notation with the format 1.12e+6 (that is, 1.12 x 106 cfu/mL). (Note: Canvas will then display your answer a whole number.) Plate Dilution Plate 1 10 dilution Plate 2 10 dilution Plate 3 107 dilution Plate 4 10 dilution Plate 5 107 dilution Plate 6 100 dilution *Too many to count Number of colony forming units (CFU) TMTC* 382 83 10 2 0Design a serial dilution procedure to achieve a 56-colony count, from a sample with 8.75x105 CFU/mL bacterial concentration.Design a serial dilution procedure to achieve a 56-colony count, from a sample with 8.75x105 CFU/mL bacterial concentration. show solution
- Serial dilution = previous dilution x dilution 11 mL [2] 3 mL Colony count: 100 0.1 mL sample [1] 9.9 mL 5 mL 0.1 ml. Cokony count Dilution: 10-1 10-3 [3] 150 Dilution factor (DF): [4] [5] [6] Compute for the CFU/mL of the sample. Show your solution and express your final answer to 2 significant figures.The number of bacterial cells in a culture broth is to be determined by a culture technique. Serial dilutions were performed and a 1 mL aliquot from each dilution was mixed with warm molten agar and poured into a Petri dish. The numbers of bacterial colony forming units (CFU) after overnight incubation are shown in the table below. What is the number of colony forming units per mL of the culture broth? Choose only the most appropriate plate for your calculation. Give your answer as the number only (do not add text for the units). You may use scientific notation with the format 1.12e+6 (that is, 1.12 x 106 cfu/mL). (Note: Canvas will then display your answer a whole number.) Plate Dilution Plate 1 10 dilution Plate 2 10 dilution -5 Plate 3 10 dilution Plate 4 10 dilution Plate 5 107 dilution -8 Plate 6 100 dilution *Too many to count Number of colony forming units (CFU) TMTC* TMTC* TMTC* 867 154 18The number of bacterial cells in a culture broth is to be determined by a culture technique. Serial dilutions were performed and a 1 mL aliquot from each dilution was mixed with warm molten agar and poured into a Petri dish. The numbers of bacterial colony forming units (CFU) after overnight incubation are shown in the table below. What is the number of colony forming units per mL of the culture broth? Choose only the most appropriate plate for your calculation. Give your answer as the number only (do not add text for the units). You may use scientific notation with the format 1.12e+6 (that is, 1.12 x 106 cfu/mL). (Note: Canvas will then display your answer a whole number.) Plate Dilution -3 Plate 1 10 dilution Plate 2 10-4 dilution Plate 3 10-5 dilution Plate 4 10 dilution Plate 5 10 dilution -8 Plate 6 100 dilution *Too many to count Number of colony forming units (CFU) TMTC* 1,957 65 21 1 0 m
- A culture is incubated for 10 hours. 1 hours after inoculation it reached the exponential growth phase. At this time point the cell density was 1x10^4 cells/ml. 5 hours after inoculation (still during the exponential growth phase) the cell density was 1x10^7 cells. Calculate K and g(t). The growth constant (k) is minute. (round to 3 decimal points) The generation time (gt) is minutes. (round to whole number)Compare and contrast bacteriocidal, bacteriostatic and bacteriolytic agents. What are their effects on the optical density (OD) and viable count of a bacterial culture, respectively?What would the final concentration of a bacteria culture be if 2.7 x 106 cells/ml were diluted 8.2 x 10-2? What would the initial concentration of a bacteria culture be if the final concentration was 3.7 x 102 cells/ml and the total dilution was 4.6 x 10-4?
- Describe how you would make 10 ml of a 1:500 dilution of bacteria by performing TWO SEPARATE DILUTIONS in series? Consider the accuracy of the pipetting so that you don’t make a single dilution that is too large.a. Explain whether or not any of the methods in fi gure 2.9 could beused to determine the total number of cells present in a patient’s specimen.b. After performing the streak plate method on a bacterial specimen, theculture was incubated for 48 hours at 37°C. Upon viewing the plate, therewas heavy growth (with no isolated colonies) in the fi rst quadrant, but nogrowth was apparent in the remaining quadrants. Please discuss errors in the procedure that could have produced this result.You have spread 0.1ml of a 1x10-8 diluted bacterial culture sample on a Petridish and counted35 colonies. What was the cell density of your original culture (in cells/ml)? How many cellsdid you have in 100ml of that culture? DON’T FORGET TO ROUND!