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Gene Interactions
When the expression of a single trait is influenced by two or more different non-allelic genes, it is termed as genetic interaction. According to Mendel's law of inheritance, each gene functions in its own way and does not depend on the function of another gene, i.e., a single gene controls each of seven characteristics considered, but the complex contribution of many different genes determine many traits of an organism.
Gene Expression
Gene expression is a process by which the instructions present in deoxyribonucleic acid (DNA) are converted into useful molecules such as proteins, and functional messenger ribonucleic (mRNA) molecules in the case of non-protein-coding genes.
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- QUESTION 5You are asked to recommend an antibiotic to treat potential pathogenicityt in an animal. Describe a method which will allow you to make this recommendation.question 11 Explain the role of streptomycin in the lab. 1. Streptomycin was the bacteria to which we applied the antibiotic 2. Streptomycin refers to the spreading process that precedes incubation. 3. Streptomycin is the growth medium that bacteria require to grow. 4. Streptomycin was the antibiotic to which we exposed the bacteriaquestion 28 // both pictures are attached below.
- Question 1 To expose bacteria to antibiotics, the bacteria were sprayed with a streptomycin solution immediately after incubation. True or FalseQuestion 17 A nurse colleague asks for your help in drawing blood cultures from a patient with suspected bacteremia. You notice that he has handed you two bottles, each with a different colour label. What is the reason for having two different culture bottles? Question 17 options: a) One bottle is used to identify Gram positive organisms and the other bottle helps identify Gram negative organisms b) There is no reason for two bottles. The microbiology laboratory only needs one bottle c) One bottle is used for aerobic bacteria and the other bottle is used for anaerobic bacteria d) One bottle is used to identify the bacterial organism, and the other bottle is used as a back-up in case the microbiology laboratory needs a larger sampleQUESTION 41 You are doing research on a bacterium that undergoes gliding, not surprisingly you note the bacterium produces what? • A. capsule • B. hamus/hami • C. slime layer D. surface array layer (S layer) • E. stalk
- QUESTION 20 All of the following are characteristics of pathogens that allow them to rapidly and effectively evolve, EXCEPT: a. Large genome size b. Large population size c. Short generation time d. High mutation rateQuestion 4How does an autopsy differ from a medico-legal autopsy? Discuss..Question 2 A spreader was used to 1. to uniformly disperse bacteria across the surface of the agar 2. to transfer bacteria from the test tube to the agar plate 3. to simulate mutations for antibiotic resistance 4. to disperse the antibiotic
- QUESTION 23 When using composting piles, it is important to _____. a. avoid adding food products or similar items b. dispose of the compost on a regular basis c. avoid adding weeds and other plants d. mix or rotate them and avoid adding hazardous materials e. fertilize the compost pileQuestion 5 Mutations are random events. True or FalseQuestion 26 A ___ is an even layer of bacteria on an agar plate. a progenitor cell b bacterial lawn c Kirby-Bauer test d colony