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Q: What do we mean when we say that OC mutations in thelac system are cis-acting?
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Q: What is known as reverse transcription ?
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Q: What is a recessive gene?
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- A chemolithotroph would use which of the following as a source of energy? magnetic field glucose light H2Cytochrome C oxidase Oxidase test results: (color and +/- negative): __________________________________ Organism does or does not possess Cyt C in ETS: _________________________ Is the 0rganism aerobic or anaerobic: _________________________________Laboratory Report Sheet – ENZYMES DATA & RESULTS Potato Peroxidase Observations potato extract + phenol + H2O2 __________________ potato extract + catechol + + H2O2 ____________ potato extract + Guiac + H2O2 ____________ boiled potato extract + phenol + H2O2 ____________ boiled potato extract + catechol + + H2O2 _________ boiled potato ex tract + Guiac + H2O2 ___________ Note your observations AND does heat destroy peroxidise?
- Which is the odd one out ? For the rest, explain the concept/process/technique they are involved with. chloroform RNAses DNA RNA ethanolIn an epoxidation lab, why is it important to continue stirring vigorously in order to get a good yield?What tests would you use to determine if an organism was fermentation positive or negative? Include in your answer the indicator you would use. In addition to carbohydrate, what other major organic material, present in the medium, could be broken down to produce energy and what would be the final color change be used when it is broken down?. Also indicate the three possible color changes of the indicator used and the three pH levels at which the medium changes color. Explain the purpose of the Durham or fermentation tube in the test tube and why it is upside down? What gas is produced in fermentation of glucose? The purpose of the fermentation tests are to determine members of what family from other gram negative organisms? Name a genera of Gram positive cocci from a genera of Gram positive cocci which is a non-fermenter.
- balanced redox reaction and oxidizing and reducing agentsSugar Utilization medium (Containing trehalose, sucrose, trehalose, Mannose,etcUreaseTable 3 - Determination Tube # Potato Expt. Temp. 2c 3c 4c 5c extract (mL) 2 2 2 2 room temp 20 °℃ 40 °℃ 75 °℃ Boiling 100 °C of the optimum temperature of catechol oxidase enzyme. 1st Absorbance 0 min. at Expt. Temp. dH₂O Catechol (mL) (mL) 0 0 0 0 13 13 13 13 Start Time: 4:20 Absorbance: 0.072 Start Time: 4:25 Absorbance: 0.114 Start Time: 4:25 Absorbance: 2nd Absorbance after 10 min. in Expt Temp. Absorbance: 0.097 Time for reading: 4:30 Absorbance: 0.128 Time for reading: 4:33 Absorbance: Subtract 1st from 2nd absorbance 0.056 0.137 Time for reading: 4:35 Absorbance: 0.132 0-193 Start Time: 4:27 Time for reading: 437 Absorbance: 0-126 0.023 0.061 0.029 3rd Absorbance after 10 more min. at Room Temp. Time for reading: 4:40 Absorbance: Based on the data from Table 2 answer these questions: Q10) What is the enzyme's optimum temperature? Answer: Q11) Use the difference between 2nd and 1st absorbance to support your conclusion for the optimum temperature. 0.159 Time for reading: 4:43…
- Using xylitol what happen to in bottle using yeast at 25c and 45cIn the context of flow cytometry data: The Lactobacillus cells also show a clear increase in PerCP (red) fluorescence when stained with SYBRGreen (SG) compared to unstained cells. Why might this be the case? Think about the emission spectrum of chlorophyll and SG in combination with the dichroic mirrors (e.g. the ‘filters’ for the detectors).Select ALL that apply. An organism that can undergo fermentation could possibly be an Obligate Aerobe Obligate Anaerobe Facultative anaerobe Aerotolerant anaerobe Select the things that are NOT performed when observing motility under the microscope Stain is applied to see the cells properly The oil immersion lens is used for maximum magnification The slide is heat-fixed The condenser and iris diaphragm are adjusted to enhance the appearance of the cells The four biochemical tests that help to identify members of the family Enterobacteriaceae is referred to as Methyl Red ViC test IMViC test Voges Proskauer test MIViC test Which of the following statements about preparing a Hanging Drop slide is true? Petroleum jelly is mixed with the culture to slow down the cell movement The drop of culture does not touch the cavity slide, only…