BSCI 222 – Principles of Genetics Required Homework #9 Chapters 16 & 17 – Gene Expression 1. Indicate the phenotypes of the following E. coli lac partial diploids in terms of the active enzymes synthesized. With lactose? Without lactose? a. I-P+O+Z+Y-/I+P-O+Z+Y+ - + b. I-P+OCZ+Y-/I+P+O+Z-Y+ + - c. I-P+OCZ+Y+/I-P+O+Z+Y - - d. I+P-OCZ+Y+/I-P+OC
Premium DNA Gene expression Gene
AGR 3303 Genetics Exam 2 February 28‚ 2007 There are 25 questions and each correct response is worth 4 points. Please darken in the circles to spell your last name‚ FI‚ and MI and to record your UF ID and test code number. The test code number is located at the bottom of each page of your exam and should be recorded in the spaces provided for questions 76-80. Failure to correctly mark your the test code will result in a grade of 0 for your exam score. Once exams have been graded‚ your grade will
Premium RNA DNA Gene expression
Isolation and identification of an unknown bacterium Pillay‚ Esmerelda (209504371) School of Biochemistry‚ Genetics and Microbiology Department of Microbiology University of Kwa-zulu Natal 25 October 2010 ABSTRACT Different types of bacteria in various forms are found all around us‚ and it is a microbiologist’s job to be able to identify these bacteria. Using various staining techniques and physiological tests‚ an isolated bacterium can be identified. In this experiment‚ a single bacterial
Premium Enzyme Gram staining Bacteria
INTRODUCTION Macromolecules are highly important organized organic molecules that are found within living cells. These biological molecules help the body execute precise important tasks. There are four types of macromolecules: carbohydrates‚ lipids‚ proteins and nucleic acids. (Karp‚ 2010) This specific experiment showcased the identification of different macromolecules using three different testing methods. Carbohydrates‚ sugar molecules‚ are known as “fast fuel” in the body‚ and they contain
Free Glucose Carbohydrate Sugar
sweetest chemical listed here? __________________________ 5) Lactose is found in milk. Why does milk not taste very sweet? Lactose free milk is milk that has been treated with an enzyme (lactase) to destroy the lactose so those who are intolerant can get all the benefits of real milk. Usually those people cannot breakdown lactose in their stomach and intestines because they lack the enzyme. The milk itself will be slightly sweet because lactose is not very sweet but the hydrolysis product are sweet.
Premium Nutrition Fat Unsaturated fat
and related legitimate practices‚ without necessarily validating those beliefs or practices." It also defines religious intolerance as "a) Refusing to acknowledge and support the right of individuals to have their own beliefs and related legitimate practices. b) Also‚ the unwillingness to have one’s own beliefs and related practices critically evaluated." Religious intolerance can have drastic effects on the person the teen grows to be. In the Columbine massacre (1999)‚ two young boys went around
Premium Religion Islam Faith
Biology Form Four Digestion Digestion is the process by which food is broken down from complex insoluble substances into simple soluble substances. There are two types of digestion – chemical digestion and mechanical digestion. Mechanical digestion involves breaking up large pieces of food into smaller pieces. This provides a large surface area for the action of enzymes on food. There is no change to the chemical composition of food during mechanical digestion. Mechanical digestion occurs in
Premium Digestion Digestive system Nutrition
25%‚ 11.60%‚ 12.48% and 10.87% in milk yield‚ 3.71%‚ 5.43%‚ 13.43% and 4.57% in milk fat‚ 4.99%‚ 7.33%‚ 10.56% and 7.62% in milk protein and 1.36%‚ 2.57%‚ 4.98% and 2.97 in total solid of milk while decrease in 1.85%‚ 2.26%‚ 2.46% and 1.85% in milk lactose for different treatments T2‚ T3‚ T4 and T5 due to shatavari feeding. Treatment phases had more pronounced effect of supplementation than the residual phases. Thus‚ it may be concluded that Shatavari has lactogenic properties to improve the milk production
Premium Milk Cattle Dairy farming
reducing sugar is isomerisation‚example of reducing sugar islactose‚maltose‚glucose and fructose.All monosaccharides are capable of reducing other chemicals such as copper (II) sulphate to copper oxide.Beside that disaccharides such as maltose and lactose are reducing sugar‚however sucrose is non reducing sugar.Sugar exist in solution as an equliburum mixture of open chain and closed ring or in other words is cyclic structures.In the open chain form‚the carbon contains special bond called carbonyl
Premium Glucose Sucrose Starch
applied. The first procedure that was done was the gram stain. Under a microscope‚ if the gram stain is purple‚ the bacterium is gram positive‚ if the stain is red‚ it is gram negative. The next test was the fermentation tests for glucose‚ sucrose and lactose. If an organism is able to ferment the carbohydrate‚ there will be acid produced‚ which will turn the broth yellow. Homofermentation shows that only one product was produced-acid. Other organisms will carry out heterofermentation‚ the presence of
Premium Bacteria Escherichia coli Microbiology