less susceptible to decolorization by Ethyl Alcohol. Using this property‚ cells with a thinner peptidoglycan layer can be stained a different color than gram positive cells within a culture. The primary color is applied to the culture and imparts a purple color to all bacteria in your sample. Adding Gram’s iodine‚ a mordant used by the method’s namesake‚ makes the violet color more intense‚ and creates a bond with the primary stain that makes it less soluble. The third step is to add a decolorizing
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BTN 211 TOTORIAL 1 Chapter 1 1. The History and Scope of Microbiology Which of the following distinguish the field of microbiology from other fields of biology? a. the size of the organism studied b. the techniques used to study organisms regardless of their size c. both the size of the organism studied and the techniques employed in the study of organisms d. neither the size of the organism studied nor the techniques employed in the study of organisms regardless of their size Who of
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called fast plants‚ was studied because as their name suggests‚ they are able to complete a lifecycle in a short period of time. (www.fastplants.org) The color variations we observed among the plants were that some had green stalks while others were purple. The pigment which gives plants their color is called anthocyanin. (www.carnivorousplants.org) Anthocyanin is responsible for the variety of colors seen in plants. The anthocyanin pigment serves two purposes for plants. Plants use the color to attract
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ruled by an unethical regime after a bout of economic disparity. In response to such hardship and social chaos‚ factional groups formed such as the anarchic “Purple Shirt” party. Through the use of scare tactics and false promises‚ the Headman of this party was voted into presidency. The General Assembly became thoroughly comprised of Purple Shirt followers‚ resulting in objectors of their ideologies being put to death. Many citizens of the state took this as an opportunity to report others for frivolous
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DESTINATION BRANDING Malaysian destination branding is remarkably successful. Malaysia stands as the harmonious country and unique with different culture. Malaysia is diverse with fusion of different ethnics‚ races and religion where Chinese‚ Indians‚ Malay and many other different ethnics groups live together in peace and harmony. The multiculturalism has made Malaysia a gastronomical paradise and home to hundreds of colourful festivals. Malaysian people are well known for the culture‚ friendliness
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gram-negative bacteria which do not stain purple and into gram-positive cells which does stain purple. Bacteria that decolorize easily are called gram-negative‚ and those that decolorize slowly and retain a primary stain are called gram-positive. The gram staining procedure consists of fixing a colony of bacteria onto a slide and then flooding the colony with various chemicals. First‚ crystal violet dye was dropped onto the bacterial cells‚ staining gram-positive cells purple. Iodine was added to fix the violet
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MATERIALS Vigna sesquipedalis Dolichos lablab Psidium guajava Anona squamosa Fragaria vesca Ananas comosus Cucumis sativus Cucurbita moschata Citrus microcarpa Citrus grandis Mangifera indica Spondias purpurea Pyrus malus Hibiscus esculentus Ricinus communis Bixa orellana Tithonia diversifolia Cosmos sp. Oryza sativa Zea mays Cocos nucifera Lycopersicon esculentum III. ACTIVITY A. Study carefully all the fruit specimens and try to match their types
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many chromosomes as the parent cell Effects growth and repair Produces gametes 4 BLG1501/201/S2/2012 Question 12.5: A purple flower with an unknown genotype is crossed with a white flower. Determine the genotype of the purple flower if purple (P) is dominant and white (p) is recessive. (20) Answer: P-generation: The purple flower must have the P-allele because purple is dominant. We do not know
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many “thinkers” or “dreamers” thought that children’s development happens in different stages and that with each of the stages; it shows a different challenge for each individual child. When it comes to children’s literature‚ like “Harold and the Purple Crayon”‚ if successfully used‚ the literature can be used for parents to use to help the children to classify with the developmental stage that they are in and sometimes even get the child prepared for the stage that they could be going into next
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More understanding the types and morphology of bacteria. Expected experimental result‚ Escherichia coli (E.coli ) is a negative gram bacteria which stain pink colour ‚ while Staphylococcus aureus ( S.aureus ) is a positive gram bacteria which stain purple colour. Materials Bacteria : Escherichia coli ‚ Staphylococcus aureus Crystal Violet Gram’s iodine Absolute alcohol Safranin Methodology As per manual. Discussion Gram staining is a very importance preliminary step to differentiate
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